Service Manual

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TimeCutter

Z / Precision

Zero Radius Turn Riding Mower

Service Manual

Consumer Products

Summary of content (72 pages)

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Consumer Products TimeCutter® Z / Precision® Z Zero Radius Turn Riding Mower Service Manual
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ABOUT THIS MANUAL This service manual was written expressly for Toro and Lawn-Boy service technicians. The Toro Company has made every effort to make the information in this manual complete and correct. Basic shop safety knowledge and mechanical/electrical skills are assumed. The Table of Contents lists the systems and the related topics covered in this manual. For additional information on the electrical system, please refer to the Toro Electrical Demystiﬁcation Guide (492-4761) and subsequent.
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TABLE OF CONTENTS SAFETY INFORMATION General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A1-2 Think Safety First . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A1-2 SPECIFICATIONS General Speciﬁcations Toro TimeCutter® Z . . . . . . . . . . . . General Speciﬁcations Lawn-Boy Precision® Z . . . . . . . . . . Hydrostatic Transaxles . . . . . . . . . . . . . . . . . . . Transaxle Speciﬁcations . . . . . . . . . . . . . . . . . . .
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TABLE OF CONTENTS HYDRO-GEAR TRANSAXLE cont. Actuator Arm Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14 310-2200 EZT™ Troubleshooting Checklist . . . . . . . . . . . . . . . . . . . . . . . . 4-16 ELECTRICAL SYSTEM Electrical System . . . . . . . . Relay (Kill Relay) . . . . . . . . Purpose . . . . . . . . . . Location . . . . . . . . . . How It Works . . . . . . . . Testing . . . . . . . . . . Solenoid . . . . . . . . . . . Purpose . . . . . . . . . . Location . . . . .
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TABLE OF CONTENTS MOWER DECKS - 38”/42”, 44” AND 48” DECK ASSEMBLIES cont. 44” Mower Decks Leveling the Mower from Side-to-Side . . . . . . . . . . Adjusting the Front-to-Rear Blade Slope . . . . . . . . . Inspecting the Belts . . . . . . . . . . . . . . . . . Replacing the Mower Belt . . . . . . . . . . . . . . . Removing the Mower . . . . . . . . . . . . . . . . Installing the Mower . . . . . . . . . . . . . . . . . 48” Mower Decks Leveling the Mower from Side-to-Side . . . . . . . . . .
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TABLE OF CONTENTS THIS PAGE INTENTIONALLY LEFT BLANK.
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SAFETY INFORMATION TIMECUTTER® Z / PRECISION® Z SERVICE MANUAL Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . 1 Speciﬁcations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Hydro-Gear Transaxle . . . . . . . . . . . . . . . . . . . . . . . . 4 Electrical Systems . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Mower Decks . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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SAFETY INFORMATION General Information This symbol means WARNING or PERSONAL SAFETY INSTRUCTION - read the instruction because it has to do with your safety. Failure to comply with the instruction may result in personal injury or even death. 1 This manual is intended as a service and repair manual only. The safety instructions provided herein are for troubleshooting, service, and repair of the TimeCutter Z zero radius tractor and the Precision Z®.
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SPECIFICATIONS TIMECUTTER® Z / PRECISION® Z SERVICE MANUAL Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Speciﬁcations . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Hydro-Gear Transaxle . . . . . . . . . . . . . . . . . . . . . . . . 4 Electrical Systems . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Mower Decks . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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SPECIFICATIONS General Speciﬁcations - Toro TimeCutter® Z 2 Item Speciﬁcation Engines All units were manufactured with Briggs & Stratton engines ranging from 14 to 17 horsepower. For information on servicing the engine, contact Briggs & Stratton Corporation. RPM setting, all models High RPM Setting (no load) 3300 + 100 RPM Construction Frame: 10 gauge steel Fuel Capacity 2 gallons (7.5 liters) Diesel Fuel Wheel Base 47.6” (120.9cm) center of front to center of drive tires Overall Length 72.
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SPECIFICATIONS Item Speciﬁcation Mower Decks 38” (97cm) cut, right side discharge, two blade mid-mount rotary. Drawn 13 gauge steel deck with welded mounting brackets. Frame supported 42” (107cm) right side discharge, two blade mid-mount rotary. Drawn 13 gauge steel deck with welded mounting brackets. Frame supported. 2 44” (112cm) cut, right side discharge, three blade mid-mount rotary. Drawn 13 gauge steel deck with welded mounting brackets. Frame supported. 48” (121.
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SPECIFICATIONS General Speciﬁcations - Lawn-Boy Precision Z 2 Item Speciﬁcation Engines Units were manufactured with Briggs & Stratton and Honda engines ranging from 390cc to 530cc displacement. For information on servicing the engines, contact Briggs & Stratton Corporation or Honda. RPM setting, all models High RPM Setting (no load) 3300 ± 100 RPM Construction Frame: 10 gauge steel Fuel Capacity 1.8 gallons (6.8 liters) Wheel Base 47.6” (120.
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SPECIFICATIONS Item Speciﬁcation Mower Decks 38” (97cm) cut, right side discharge, two blade mid-mount rotary. Drawn 13 gauge steel deck with welded mounting brackets. Frame supported. 42” (107cm) cut, right side discharge, two blade mid-mount rotary. Drawn 13 gauge steel deck with welded mounting brackets. Frame supported. 2 44” (112cm) cut, right side discharge, two blade mid-mount rotary. Drawn 13 gauge steel deck with welded mounting brackets. Frame supported.
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SPECIFICATIONS Hydrostatic Transaxles Identiﬁcation: Hydro-Gear EZT Hydrostatic Transaxles 2 MVC-204X Transaxle Speciﬁcations Lubrication SAE 20W-50 API Classiﬁcation SH/CD Oil Capacity 1.6 to 1.7 qt. (1.5 to 1.6 liters) Oil Level The transaxle is a sealed system and does not require periodic checking. Check oil at the oil ﬁll plug location only. Do not check the oil at the vent tube.
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SPECIFICATIONS Hydrostatic Transaxles cont. Note: If you are replacing the transaxle, after you have installed the hydro rods, remove the nut and washer located on the cam plate. Also, check the oil prior to installation.
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SPECIFICATIONS Torque Specifications Fastener Identification Recommended fastener torque values are listed in the following tables. For critical applications, as determined by Toro, either the recommended torque or a torque that is unique to the application is clearly identified and specified in the service manual. 2 These torque specifications for the installation and tightening of fasteners shall apply to all fasteners which do not have a specific requirement identified in the service manual.
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SPECIFICATIONS Standard Torque for Dry, Zinc Plated, and Steel Fasteners (Inch Series) Thread Size Grade 1, 5, & SAE Grade 1 Bolts, Screws, SAE Grade 5 Bolts, Screws, SAE Grade 8 Bolts, Screws, 8 with Thin Studs, & Sems with Regular Studs, & Sems with Regular Studs, & Sems with Regular Height Nuts Height Nuts (SAE J995 Height Nuts (SAE J995 Height Nuts (SAE J995 Grade 2 or Stronger Nuts) Grade 2 or Stronger Nuts) Grade 2 or Stronger Nuts) In-lb # 6 - 32 UNC In-lb N-cm In-lb N-cm In-lb N-cm 15 ± 2
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SPECIFICATIONS Standard Torque for Dry, Zinc, and Steel Fasteners (Metric Fasteners) Thread Size 2 Class 8.8 Bolts, Screws, and Studs with Regular Height Nuts (Class 8 or Strong Nuts) Class 10.9 Bolts, Screws, and Studs with Regular Height Nuts ( Class 10 or Strong Nuts) M5 X 0.8 57 ± 5 in-lb 640 ± 60 N-cm 78 ± 7 in-lb 885 ± 80 N-cm M6 X 1.0 96 ± 9 in-lb 1018 ± 100 N-cm 133 ± 13 in-lb 1500 ± 150 N-cm M8 X 1.25 19 ± 2 ft-lb 26 ± 3 N-m 27 ± 2 ft-lb 36 ± 3 N-m M10 X 1.
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CHASSIS TIMECUTTER Z SERVICE MANUAL Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Chassis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Hydro-Gear Transaxle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Electrical Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Mower Decks. . . . . . . . .
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CHASSIS Model and Serial Number Location Greasing and Lubrication The unit model and serial number plate is located on the frame under the seat as shown in the illustration (Figure 3). The unit should be greased every 25 hours or more often when operated in dusty, dirty or sandy conditions. Grease Type: No. 2 general purpose lithium base grease. There are four grease fittings located in the front wheel area: 1. One grease fitting is located in each of the cast iron pivot castor supports (Figure 5).
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CHASSIS Front Castor Fork Removal and Installation Installation Follow the removal procedure in reverse. Removal 1. 2. Castor Support Removal Park the machine on a level surface, disengage the blade control (PTO), and turn the ignition key to OFF to stop the engine. Remove the ignition key. 1. Raise the front end of the unit (Figure 9). Raise the front of the unit high enough so you have enough room to lower the castor forks from the pivot castor supports (Figure 7). 3 Figure 9 Figure 7 3.
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CHASSIS Installation 2. Reverse the order of removal. The mower deck, frontto-rear blade scope, needs to be adjusted, Refer to “Adjusting the Front-to-Rear Blade Slope” on page 6 3. Remove the two carriage bolts and nuts fastening the front bracket support to the frame and remove the bracket (Figure 12). Side Panel Removal Left Side Panel Removal 1. 3 Remove the three fasteners holding the rear portion of the left side panel.
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CHASSIS Right Side Panel and Gas Tank Removal 5. 1. Before removing the right side panel, disconnect the negative battery cable and shut the fuel off at the fuel valve, located under the fuel tank. 2. The left side panel must be removed first before the right side panel can be removed. Follow procedures for removing the left side panel. 3. Remove the 4 screws on the control panel and move the control panel away from the side panel (Figure 14).
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CHASSIS 7. Disconnect the gas line at the carburetor. Remove the two spring clips located at the bottom of the gas tank, disconnect the gas line and remove the tank (Figure 18). 2. Unbolt the flange bearing from the left side of the unit and remove from the end of the lift arm shaft (Figure 20). 3 Figure 20 Figure 18 mvc-073 mvc-068 3. Remove the lift arm assembly (Figure 21). Installation Reinstall the gas tank and right side panel in reverse order. Lift Arm Assembly Removal 1.
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CHASSIS Belt Replacement 5. Removal 1. Before removing or replacing the belt, disconnect the negative battery cable and shut the fuel off at the fuel valve, located under the fuel tank. 2. Remove the mower drive belt from the electric PTO clutch. 3. Disconnect the plug connection to the electric clutch (Figure 22). Disconnect the spring connected to the rear idler arm and remove the lower drive belt off the engine pulley and around the left transaxle pulley (Figure 24). 3 Figure 24 6. Figure 22 4.
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CHASSIS Belt Installation 1. 3. Install belt around the upper groove of the engine drive pulley and then around the right side transaxle pulley. Install idler spring to the front spring bracket (Figure 26). Apply anti-seize lubricant on the crankshaft and install the electric PTO clutch on the engine crankshaft; make sure the slot on the clutch goes into the clutch stop bracket. NOTE: Loctite 242 should be applied to the threads of the clutch bolt before installing. Torque the clutch bolt to 50 - 60 ft.
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HYDRO-GEAR TRANSAXLE TIMECUTTER Z SERVICE MANUAL Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Hydro-Gear Transaxle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Electrical Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Mower Decks. . .
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HYDRO-GEAR TRANSAXLE Hydro-Gear (310-2200) EZT™ Transaxles 2. Raise the rear end of the unit and remove the right and left rear tires (Figure 29). Internal Service Internal service information is contained in the HydroGear Transaxle Service Manual, Form # 492-4778. Note: Under warranty, the transaxles should NOT be disassembled or internally repaired, unless authorized by either your Distributor Service Manager or The Toro Company.
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HYDRO-GEAR TRANSAXLE 5. Remove the bolt, washer, and spacer retaining the brake arm on both the right and left transaxles. Make sure dirt and debris is cleaned off around the vent hose connected to each transaxle, then remove the vent hoses. Cover the open hole in each transaxle with tape to prevent dirt entry (Figure 31). 7. Remove the 4 bolts and washers on the left side of the frame (Figure 33). Figure 33 8. Figure 31 6.
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HYDRO-GEAR TRANSAXLE 9. Slowly lower the hydro frame and the transaxles down about half way out of the frame of the unit and stop. 12. Hydro mount frame and the two transaxles removed from the frame of the unit (Figure 37). Figure 37 Figure 35 4 10. Disconnect both the right and left hydro rods by removing the bolt and nut through the frame of the unit (Figure 36). Removing Transaxles from the Hydro Mount Frame 1.
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HYDRO-GEAR TRANSAXLE 2. Remove the two bolts, washers, and nuts securing the transaxle to the hydro frame and remove the transaxle from the hydro frame (Figure 39). Figure 39 3. Assembly Reverse the order of removal. TimeCutter Z Service Manual 1. mvc-110 NOTE: If you are replacing the transaxle, after installing the hydro rods, remove the nut and washer on the cam plate (Figure 40). Figure 40 Wheel Hub Removal mvc-206 Remove the bolt holding the locking tab to the hub (Figure 41). Figure 41 2.
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HYDRO-GEAR TRANSAXLE Transaxle Installation 1. 4. Install the 4 bolts on both the right and left sides of the frame and tighten (Figure 45). Slide the hydro frame/transaxles under the frame (Figure 43). Figure 45 4 2. 3. Figure 43 mvc-114 5. Install and tighten the four bolts on the right and left support brackets (Figure 46). Lift the front of the hydro frame up into the frame, making sure both the hydro rods and the brake rods are in the right positions.
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HYDRO-GEAR TRANSAXLE 6. Install the transaxle vent tubes to the transaxles. Make sure the protective caps fit under the rear bracket support (Figure 47). Figure 47 9. Put a floor jack under the frame and raise the unit. Remove the floor jack stands and install the right and left rear tires. For stability, position the floor jack stands at the rear of the unit (Figure 49). mvc-116 Figure 49 7. 8. mvc-128 Install transaxle drive belts. Refer to “Belt Installation” on page 3 - 8. 10.
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HYDRO-GEAR TRANSAXLE 13. After any service where control linkage was disturbed or after purging procedures have been performed, check the neutral adjustment. If the neutral adjustment needs to be performed, refer to “Neutral Adjustment” on page 4 - 9. 14. Reconnect the brake levers and check the brakes, refer to “Brake Adjustment” on page 4 - 11.
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HYDRO-GEAR TRANSAXLE Neutral Adjustment 3. Before making a neutral adjustment, the transaxles must be warmed up, usually 5 to 10 minutes. Steps to perform neutral adjustment: 1. Unplug the seat switch and temporarily connect a jumper wire across the plug connector on the harness (Figure 54). Jack-up and support the rear end of the unit. Place jack stands at the rear to stabilize the unit (Figure 52). Figure 54 4. Figure 52 2.
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HYDRO-GEAR TRANSAXLE 5. Observe the rear tire to see if the wheel is creeping in forward or reverse, in the neutral position (Figure 56). Figure 56 4 6. 7. mvc-137 If the rear wheel is creeping in forward or reverse, remove the bolt and nut on the end of the control rod (Figure 57). Figure 58 8. Figure 57 Move the control rod back and forth and watch the tire direction. Adjust the rod so that it is mid-point between forward and reverse wheel rotation.
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HYDRO-GEAR TRANSAXLE 10. Reconnect the seat switch and lower the unit to the ground. Operate the equipment to make sure the adjustments and the safety devices are operating properly. Tracking Adjustments Tracking adjustment is necessary when the speed of one transaxle is faster then the other; so that the unit will not travel in a reasonable straight line. The faster transaxle must be slowed down to correct this.
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HYDRO-GEAR TRANSAXLE 2. Pull back on the brake rod and adjust the nut on the end of the rod (Figure 63) until the tab at the bottom of the brake lever and the tab located on the transaxle housing meet (Figure 64). Figure 63 4 3. Move the forward/reverse handle to the park position (handles out) and then back to the run position (handles in). Make sure the brake arms are clear from the disc brake cogs in the run position (Figure 65). mvc-177 Figure 65 mvc-182 Actuator Arm Removal Figure 64 1.
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HYDRO-GEAR TRANSAXLE 3. Remove the bolt and nut retaining the hydro rod to the actuator arm (Figure 67). Figure 67 5. Remove the bolt and nut retaining the rear of the hydro rod to the control arm and slide the hydro rod towards the rear (Figure 69). mvc-150 Figure 69 4. mvc-103 Remove the nut on the brake link (Figure 68). 6. Figure 68 Unplug and remove the park brake switch from the lower bellcrank bracket (Figure 70).
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HYDRO-GEAR TRANSAXLE 7. Remove the bolt and nut holding the bellcrank and remove (Figure 71). Actuator Arm Installation 1. Figure 71 8. mvc-158 Slide the actuator off the welded stud (Figure 72). 4 Figure 72 Slide the actuator on the welded stud and install a washer and nut and tighten (Figure 73). Figure 73 2. Install the park brake switch in the lower bellcrank bracket and plug in the wire connector. 3. Install the bellcrank with bolt and nut.
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HYDRO-GEAR TRANSAXLE 4. Install the brake link to the bellcrank with a nut and tighten (Figure 75). Figure 75 5. Connect the rear of the hydro rod to the transaxle control arm and tighten (Figure 76). Figure 76 mvc-162 6. mvc-103 Install the hydro rod to the actuator.
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HYDRO-GEAR TRANSAXLE In many cases, problems with the 310-2200 are not related to a defective transaxle, but are caused by slipping drive belts, partially engaged bypass valves, and loose or damaged control linkages. The table below provides a troubleshooting checklist to help determine the cause of operational problems. WARNING Do not attempt any servicing or adjustments with the engine running.
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ELECTRICAL SYSTEM TIMECUTTER Z SERVICE MANUAL Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Hydro-Gear Transaxle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Electrical Systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Mower Decks. . . . .
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ELECTRICAL SYSTEM Electrical System 2. Two things happen when turning the ignition switch to the “START” position: (1) Current flows from the ignition switch to the starter solenoid coil terminal. (2) At the same time, current will flow through the PTO (Power Take Off) switch in the OFF position, through both the brake switches, in the OFF or PARK position, to the coil terminal of the interlock relay (kill relay).
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ELECTRICAL SYSTEM 5. Disconnect voltage and multimeter leads from relay terminals (Figure 79). How it Works The solenoid has two primary parts. One, a coil of wire wrapped around an iron core. Whenever 12 volts is applied to the coil, it becomes a magnet. The other part is a bar type switch. Because it has a large contact area with the contact terminals, it can easily handle the high current loads required by the starter motor of the engine.
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ELECTRICAL SYSTEM 4. You should be able to hear the solenoid switch “click” when you make the connection (Figure 82). How it Works Detents inside the switch give it 3 positions: OFF, RUN, and START. The START position is spring loaded so the cylinder automatically returns to RUN once the key is released (Figure 84).
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ELECTRICAL SYSTEM PTO Switch How it Works Purpose When the PTO switch is pulled out to the ON position, contacts inside the switch electrically connect various terminals. One terminal is connected to the wire that goes directly to the electric clutch. When the PTO is pulled out to the ON position, voltage flows to the electric clutch and engages. The PTO (Power Take Off) switch is typically used to turn on the Electric PTO Clutch and to function as part of the safety interlock system.
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ELECTRICAL SYSTEM 5 Figure 86 5-6 2-24 TimeCutter Z Service Manual
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ELECTRICAL SYSTEM Electric (PTO) Clutch Coil Resistance Measurement Purpose 1. Disengage the PTO, set the parking brake, turn the ignition to OFF, and remove the key. This clutch electrically controls the engagement and disengagement of the Power Take Off (PTO) pulley. 2. Disconnect clutch wire connector. Location 3. Set the multimeter or volt/ohm meter to check resistance (ohms). The electric clutch is located on the PTO end of the engine crankshaft (Figure 87). 4.
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ELECTRICAL SYSTEM 7. Turn the ignition key in the switch to “RUN” position and the PTO switch to the “ON” position. 8. If the meter is 3.5 amps or above, the system is functioning properly. If the meter reading is below 3.5 amps, check the electrical system for problems (i.e., the battery, ignition switch, PTO switch, or wiring harness may be malfunctioning). Location The park brake switches are located at the base of the actuator arm linkage. There are 2 parking brake switches.
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ELECTRICAL SYSTEM Testing How it Works 1. Disconnect the switch from the wiring harness. 2. Using a VOM or test light, check first to ensure there is no continuity between either terminal, plunger out. When the seat is vacated, the switch is open and there should be NO continuity between the two terminals. When the seat is occupied, the switch closes and there should be continuity between the two terminals (Figure 93). 3. With the plunger pushed in, there should be continuity between the terminals.
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MOWER DECKS TIMECUTTER Z SERVICE MANUAL Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Hydro-Gear Transaxle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Electrical Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Mower Decks . . . . . .
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38”/42” MOWER DECKS Leveling the Mower from Side-toSide 7. The mower blades must be level from side to side. Check the side-to-side level any time you install the mower or when you see an uneven cut on your lawn. 1. Park the machine on a level surface and disengage the blade control (PTO). 2. Move the motion control levers to the brake position, stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 3. Check the air pressure of all four tires.
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38”/42” MOWER DECKS Adjusting the Front-to-Rear Blade Slope 7. Install the end of the rod into the hole in the mower mount and secure it with the washer and hairpin cotter. Repeat steps 5 through 7 for the opposite side of the mower. Check the front-to-rear blade level any time you install the mower. If the front of the mower is more than 5/16 inch (8mm) lower than the rear of the mower, adjust the blade level using the following instructions: 1.
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38”/42” MOWER DECKS 9. Measure from the tip of the front blade to the flat surface and the tip of the rear blade to the flat surface (Figure 98). If the front blade tip is not 1/ 16 - 5/16 inch (1.5 - 8mm) lower than the rear blade tip, adjust the front locknuts. Note: After adjusting the adjustment nuts, make sure there is no slack in either support rod (Figure 101). Tighten either one to remove the slack (Figure 99).
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38”/42” MOWER DECKS 4. Remove the belt covers over the outside spindles. 5. Pull the idler pulley in the direction shown in Figure 100 and roll the belt off of the pulleys. 9. Install the belt covers over the outside spindles. CAUTION The spring is under tension when installed and can cause personal injury. Be careful when removing the spring. 6. Route the new belt around the engine pulley and mower pulleys (Figure 100). 7.
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38”/42” MOWER DECKS Removing the Mower 6. Note: Before removing the mower, make a note for which holes are used in the leveling brackets (Figure 102). 1. Park the machine on a level surface and disengage the blade control (PTO). 2. Move the motion control levers to the brake position, stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 3. Lower the height-of-cut lever to the lowest position. 4.
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38”/42” MOWER DECKS Installing the Mower 1. Park the machine on a level surface and disengage the blade control (PTO). 2. Move the motion control levers to the brake position, stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 3. Slide the mower under the tractor. 4. Lower the height-of-cut lever to the lowest position. 5. Attach the adjusting rod to the tractor with the washer and hairpin cotter (Figure 102) on each side of the mower. 6.
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44”MOWER DECKS Leveling the Mower from Side-toSide 7. The mower blades must be level from side to side. Check the side-to-side level any time you install the mower or when you see an uneven cut on your lawn. 1. Park the machine on a level surface and disengage the blade control (PTO). 2. Move the motion control levers to the brake position, stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 3. Check the air pressure of all four tires.
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44” MOWER DECKS 4. Check and adjust the side-to-side blade level if you have not checked the setting; refer to “Leveling the Mower from Side-to-Side” on page 6 - 8. 5. Measure the length of the rod extending out of the adjusting block on the sides of the chassis (Figure 105). 6. If the rod length is not a 3/4 inch (19 mm), remove the hairpin cotter and washer from the end of the adjusting rod (Figure 105) and turn the rod until the 3/4 inch (19 mm) dimension is obtained. 7.
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44”MOWER DECKS 12. After adjusting both adjustment nuts evenly, check the front-to-rear slope again. Continue adjusting the nuts until the front blade tip is 1/16–5/16 inch (1.6–7.9 mm) lower than the rear blade tip (Figure 107). Note: After adjusting the adjustment nuts, make sure there is no slack in either support rod (Figure 109). Tighten either one to remove the slack (Figure 107).
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44” MOWER DECKS 9. Install the belt covers over the outside spindles. 2. Move the motion control levers to the brake position, stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 3. Lower the height-of-cut lever to the lowest position. 4. Remove the hairpin cotter and clevis pin from the front support rod on each side of the mower (Figure 109). Figure 109 (1) Hairpin cotter and clevis pin 5.
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44”MOWER DECKS 6. Remove the hairpin cotter and washer at the mower leveling brackets (Figure 110) on each side of the mower. Note which hole the leveling bracket is mounted in for future installation. Slide the brackets off of the mounting pin. Figure 110 (1) Leveling bracket 38” model shown 6 Installing the Mower 1. Park the machine on a level surface and disengage the blade control (PTO). 2.
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48” MOWER DECKS 6. Remove the hairpin cotter and washer from the leveling bracket (Fig. A6 002). Leveling the Mower from Side-to-Side The mower blades must be level from side to side. Check the side-to-side level any time you install the mower or when you see an uneven cut on your lawn. A 1. Park the machine on a level surface and disengage the blade control switch. 2.
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48” MOWER DECKS Adjusting the Front-to-Rear Blade Slope Check the front-to-rear blade level anytime you install the mower. If the front of the mower is more than 5/16” (7.9mm) lower than the rear of the mower, adjust the blade level using the following instructions: 6. If the rod length is not 3/4” (19mm) remove the hairpin cotter and washer from the end of the adjusting rod (Fig. A6 003) and turn the rod until the 3/4” (19mm) dimension is obtained. 7.
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48” MOWER DECKS 11. To adjust the front-to-rear blade slope, remove the locknuts and then rotate the adjustment nuts in the front of the mower (Fig. A6 005). A A 13. After adjusting both adjustment nuts evenly, check the front-to-rear slope again. Continue adjusting the nuts until the front blade tip is 1/16” - 5/16” (1.6 7.9mm) lower than the rear blade tip (Fig. A6 005). Note: After adjusting the adjustment nuts, make sure there is no slack in either support rod (Fig. A6 006).
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48” MOWER DECKS Removing the Mower Note: Before removing the mower, make a note of which holes are used in the leveling brackets (Fig. A6 007). 4. Remove the hairpin cotter and clevis pin from the front support rod on each side of the mower (Fig. A6 008). B C A A B B Fig A6 008 Fig A6 007 A. Leveling bracket B. Hairpin cotter and washer 6 1. ﬁg. 42 G000542 A. Hairpin cotter and clevis ﬁg. 46 G000547 B. Support rod C.
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48” MOWER DECKS Mower Belt Maintenance 4. Remove the belt covers over the outside spindles (Fig. A6 009). Inspecting the Belts A B Inspect all belts every 100 hours. Check the belts for cracks, frayed edges, burn marks, or any other damage. Replace damaged belts. C Replacing the Mower Belt Squealing when the belt is rotating, blades slipping when cutting grass, frayed belt edges, burn marks, and cracks are signs of a worn mower belt. Replace the mower belt if any of these conditions are evident.
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48” MOWER DECKS 5. Pull the idler pulley in the direction shown in Figure A6 009 and roll the belt off of the pulleys. A ! The spring is under tension when installed and can cause personal injury. Be careful when removing the spring. 6. Route the new belt around the engine pulley and mower pulleys (Fig. A6 009). 7. Pull the idler pulley in the direction shown in Figure A6 009 and route the belt on to the idler pulley. 8. Rotate the belt guide, on the idler arm, towards the pulley until it stops (Fig.
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TimeCutter Z Service Manual 6 - 13
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TimeCutter® Z / Precision® Z Service Manual Form No.