Form No. 3443-344 Rev A Differential Lock Kit LT-F3000 Triple Flail Mower or LT3340 4 Wheel Drive Triple Reel Mower Model No. 02857—Serial No. 400000000 and Up Installation Instructions This kit provides a differential lock to help traction when traction is reduced in certain ground conditions. This kit can only be fitted to machine models 31657 or 31659. Installation Loose Parts Use the chart below to verify that all parts have been shipped. Procedure 1 2 3 4 Description Use Qty.
1 Preparing to Install the Kit No Parts Required Washing the Machine Important: Before installing this kit, you must thoroughly clean the machine to avoid contaminating the hydraulic system—a clean machine is required. Wash the machine; refer to washing the machine in the Operator’s Manual for your machine. g328513 Figure 1 1. Washer Preparing the Machine 1. Park the machine on a level surface. 2. Lower the cutting units. 3. Engage the parking brake. 4.
2 Installing the Differential-Lock Switch Parts needed for this procedure: 1 Differential-lock switch Procedure 1. Remove the plug from the panel of the control console as shown in Figure 3. g342637 Figure 4 g342638 Figure 3 1. 8-pin connector (labeled DIFF LOCK SWITCH—control console harness) 1. Plug 2. Lift the 8-pin connector labeled DIFF LOCK SWITCH through the hole in the control console (Figure 4). 3. 4. 2.
Removing the Hoses at the Back of the Transmission Manifold 3 Note: Make a note recording the position and orientation of all hoses, fittings, and electrical connectors that you disconnect or remove from the front transmission manifold. Removing the Front Transmission Manifold 1. No Parts Required At the top of the machine, remove the left traction-motor hose from the straight fitting in port-FAL of the front transmission manifold (Figure 8 and Figure 9). Raising the Platform 1.
Removing the Hoses at the Front of the Transmission Manifold Note: Make a note recording the position and orientation of all hoses, fittings, and electrical connectors that you disconnect or remove from the front transmission manifold. 1. Remove the left and right brake-pressure hoses from the T-fitting at port-PB of the front transmission manifold (Figure 12). g342837 Figure 10 1. Front of the machine 3. 90°fitting 2. Hydraulic-pump hose (mark A) 4. Straight fitting (port-A) 4.
5. Disconnecting the Parking-Brake Solenoid Remove the right traction-motor hose from the straight fitting in port-FAR of the front transmission manifold (Figure 14). Remove the 2-pin connector of the machine wire harness labeled P BRAKE SOL from the parking-brake solenoid (Figure 16). g342833 Figure 16 g342835 Figure 14 1. Parking-brake solenoid 3. Right traction-motor hose (mark FAR) 1. Front of the machine 2. 2-pin connector—machine wire harness (labeled P BRAKE SOL) 2.
4 Installing the Front Transmission Manifold Parts needed for this procedure: g342723 1 Front Transmission Manifold Preparing the New Transmission Manifold 1. Assemble the T-fitting that you removed in Removing the Hoses at the Front of the Transmission Manifold (page 5) onto the straight fitting in port-PB of the front transmission manifold (Figure 19). g342886 Figure 17 1. Transmission manifold 4. Lock washer (10 mm) 2. Chassis beam 5. Capscrew (10 x 25 mm) 3. Washer (10 mm) 3.
Assembling the Transmission Manifold to the Machine 1. Align the front transmission manifold to the chassis beam as shown in Figure 20. g342723 g342834 g342886 Figure 21 1. Transmission manifold 4. Lock washer (10 mm) 2. Chassis beam 5. Capscrew (10 x 25 mm) 3. Washer (10 mm) 3. g342885 Figure 20 1. Front of the machine 2.
Connecting the Wire Harness to the Differential-Lock Solenoid and Parking-Brake Solenoid 1. At the top of the machine, plug the 2-pin connector of the machine wire harness labeled P BRAKE SOL into the parking-brake solenoid (Figure 22). g342834 g342984 Figure 23 1. 2-pin connector—machine wire harness (labeled DIFF LOCK SOL) 3. Front of the machine 2. Cap 4. Differential lock solenoid 3. Installing the Hoses at the Back of the Front Transmission Manifold g342985 Figure 22 1.
g342986 g343023 Figure 24 1. Front of the machine Figure 26 3. Straight fitting (port-FAL—front transmission manifold) 2. Left traction-motor hose (marked FAL) 1. Hydraulic-pump hose (marked A) 3. Straight fitting (port-A) 2. 90°fitting 4. Front of the machine 6. Torque the 90° fitting to 160 N∙m (118 ft-lb). 2. Torque the swivel nut of the 90° return hose fitting to 45 N∙m (34 ft-lb). 7. Assemble the hydraulic-pump hose (marked A) onto the 90° fitting (Figure 26). 3.
2. Torque the swivel nut of the 90° traction motor-hose fitting to 45 N∙m (34 ft-lb). 3. Assemble the charge pressure-supply hose (marked CP) onto the straight fitting in port-CP fitting of the front transmission manifold (Figure 28). 5 Installing the Differential Pressure Hose Parts needed for this procedure: Straight fitting (3/8 x 3/4 inch) 1 Differential pressure hose 1 Adapter fitting (1/4 x 7/16 inch) 1 Seal (1/4 inch) Removing the Brake-Pressure Transducer g343021 Figure 28 1.
Installing the Pump Fitting Note: Retain the pressure transducer for installation in Installing the Brake Pressure Transducer (page 13). Machines without the Optional Road Light Kit 1. At the right side of the transmission pump, remove the plug from port-MB of the traction pump (Figure 33 and Figure 34). g343559 g344080 Figure 33 Figure 31 1. Reducer fitting (3/4 x 7/16 inch) 3. 2. Brake-pressure transducer Remove the reducer fitting (3/4 x 7/16 inch) from port-MB of the traction pump (Figure 32).
Installing the Pressure Hose 1. Assemble the 90°fitting of the differential pressure hose onto the straight fitting in port-MB fitting of the traction pump (Figure 35). g343557 Figure 37 1. Straight fitting (port-B1—front traction manifold) 2. Differential pressure hose (straight fitting) g343558 4. Figure 35 1. Straight fitting (port-MB fitting—traction pump) 2. Differential pressure hose (90° fitting) Torque the swivel nuts of the differential pressure hose fittings to 32 N∙m (24 ft-lb).
g344933 Figure 39 1. Port-PS (front traction manifold) 2. Hex-socket plug g344934 3. Figure 41 Assemble the adapter fitting (1/4 x 7/16 inch) into port-PS of the front traction manifold (Figure 40) with a seal (1/4 inch). 1. Brake-pressure transducer 2.
Checking for Hydraulic Leaks 1. Lower the platform carefully (Figure 44). Note: The gas lift cylinder helps support the platform. g344733 Figure 42 1. Nut (negative battery-cable terminal) 2. 2. Negative battery post Tighten the forward nut and T-bolt (Figure 42) of the negative battery cable terminal. g290371 Figure 44 Installing the Storage Compartment 2. Models 31657 and 31659 1. Align the holes on the bottom of the storage compartment with the holes in the chassis brackets. 2.
Note: You should feel the front wheels rotate independently (unlocked). 5. Park the machine on a level surface, engage the parking brake, lower the cutting units, shut off the engine and remove the key. Wait for all moving parts to stop before leaving the operator’s position. Operation g290370 Figure 46 Using the Differential Lock 1. Platform-latch handle 4. Ensure that the parking-brake switch is in the engaged position. 5. Start the engine. 6.
Notes:
EEA/UK Privacy Notice Toro’s Use of Your Personal Information The Toro Company (“Toro”) respects your privacy. When you purchase our products, we may collect certain personal information about you, either directly from you or through your local Toro company or dealer.
The Toro Warranty Two-Year or 1,500 Hours Limited Warranty Parts Conditions and Products Covered The Toro Company warrants your Toro Commercial product (“Product”) to be free from defects in materials or workmanship for 2 years or 1,500 operational hours*, whichever occurs first. This warranty is applicable to all products with the exception of Aerators (refer to separate warranty statements for these products).
