Operators manual Please read these instructions carefully and make sure you understand them before using the machine. MANUAL NO. 539106471 REV.
TABLE OF CONTENTS SAFETY : Training Preparation Operation Maintenance EQUIPTMENT SETUP AND ADJUSTMENTS : Front casters Axle adjustment Cutting height chart Brake adjustment Operator presence switches Belt adjustments OPERATING INSTRUCTIONS : Emergency stopping Normal stopping Pre-start Operating instructions SERVICE : Interlock system Cutting deck Cutter housing Belt replacement Winter storage Maintenance chart ©2004 Husqvarna. All right reserved. Beatrice, NE. Printed U.S.A.
INTRODUCTION This manual has been prepared for the operators of the HUSQVARNA 32", 36" commercial mowers. Read, understand, and follow the safety and operating instructions. Always stop the engine and blades, place the traction levers in drive, and place the mower in gear when leaving unattended. The steering system of this mower uses individual right and left traction levers on the handle bars. Squeezing the traction lever will reduce tension on the wheel drive belt eliminating power to that wheel.
Safety WARNING: Failure to comply with the following instructions may result in serious injury to the operator or other persons. The owner must understand these instructions, and must allow only persons who understand these instructions to operate the mower. Each person operating the mower must be of sound mind and body and must not be under the influence of any mind altering substance. OPERATION 1. Do not change engine governor settings or over speed the engine. 2.
Setup & Adjustments THROTTLE INSTALLATION 1. Connect the throttle cable end to the throttle mechanism on engine, leaving the cable clamp loose. Push throttle lever on console completely forward. Then pull the cable through the clamp on engine and tighten the cable clamp. Move the throttle lever back and forth to ensure proper installation. FRONT CASTER WHEELS 1. Mount front caster wheel assemblies. Installation includes fastening casters to front of the cutter deck using 3/8 x 1" hex head capscrews.
Setup & Adjustments REAR AXLE HEIGHT ADJUSTMENT AXLE PIVOT BOLTS AXLE ADJUSTMENT BOLTS POSITION A PLACE JACK HERE POSITION B POSITION C LOOSEN BOLTS EACH SIDE POSITION D Figure 1 CASTER HEIGHT ADJUSTMENT MACHINERY BUSHING 1/2" SPACERS CASTER SWIVEL Figure 2 6
Setup & Adjustments CUTTING HEIGHT ADJUSTMENT CHART AXLE POSITION NUMBER OF SPACERS BELOW CASTER ARM NUMBER OF 1/4" BLADE SPACERS UNDER CUTTER HOUSING 4 3 2 1 0 4 3 2 1 0 4 3 2 1 0 4 3 2 1 0 4 3 2 1 0 4 3 2 1 0 4 3 2 1 0 4 3 2 1 0 0 A 1 2 B 3 3 C 4 4 D 5 CUTTING HEIGHT (IN INCHES) 1 1/2 1 3/4 2 2 1/4 2 1/2 1 3/4 2 2 1/4 2 1/2 2 3/4 2 1/2 2 3/4 3 3 1/4 3 1/2 3 3 1/4 3 1/2 3 3/4 4 3 1/4 3 1/2 3 3/4 4 4 1/4 3 1/2 3 3/4 4 4 1/4 4 1/2 3 3/4 4 4 1/4 4 1/2 4 3/4 4 4 1/4 4 1/2 4 3/4 5 USE ONLY 4 BLADE
Setup & Adjustments OPERATOR PRESENCE SWITCH ADJUSTMENT The operator presence switches can be adjusted by loosening the screws on the side of the O.P. lever linkage and sliding the switch up or down. The O.P. switch should have a 1/32" to 1/16" gap between the plunger and the bottom side of the control panel when operator presence levers are released. BRAKE / TRACTION ADJUSMENT 1. Disconnect the brake linkage from the brake band arm. 2.
Setup & Adjustments TRANSMISSION DRIVE BELT To increase the tension of the transmission belt, loosen the nut on the underside of the transmission idler pulley located under the rear deck, slide the idler assembly inward to increase tension and tighten the nut to secure. See figure 4 & 5. BLADE ENGAGEMENT LEVER The blade engagement lever needs to be adjusted so the lever does not come in contact with control panel when the lever is in the off position.
Operating Instructions BEFORE OPERATING Be thoroughly familiar with all controls and how to use them before operating the mower. Know beforehand how to stop the engine, drive wheels, and mower blades in preparation for possible emergency. PRE-START CHECKLIST Make the following checks and perform the services as required before each start up. 1. If required make cutting height adjustments and drive linkage adjustments.
Operating Instructions 6. Pull starter rope until engine starts. 7. Warm engine momentarily, then move the throttle control out of the choke position until engine runs smoothly, approximately 1/2 throttle. Engage the blades and set the desired rpm. The best cutting and bagging is obtained with engine at or near top rpm. NOTE: DO NOT engage the blades at full rpm. To extend belt life engage and disengage belts at 1/2 throttle. 8. Depress one operator presence lever and shift transmission to the desired gear.
Service SERVICE ASSISTANCE REPLACEMENT PARTS To retain the quality of your mower, use genuine HUSQVARNA replacement parts only. Contact your local HUSQVARNA dealer for parts and service assistance. For the correct part or information for your particular mower, always mention model and serial number. We recommend returning your mower to an authorized HUSQVARNA dealer on a yearly basis for inspection and addition of any new devices which might upgrade the performance and safety of your mower.
Service Cutter housing assemblies use sealed bearings and are maintenance free. CUTTER HOUSING SPINDLE ASSEMBLIES The cutter housing assembly is designed with a slip fit inner race and pulley. The sole purpose of the setscrew in the pulley is to hold the housing assembly together. The setscrew is not meant to secure the pulley. The pulley is secured by pinching the pulley to the inner race of the bearings using the blade bolt and nut.
Service WHEEL DRIVE BELT REPLACEMENT WHEEL DRIVE BELT: If belts are worn or damaged, wheels will not drive properly. To replace either belt, proceed as follows: TRANSMISSION BELT REPLACEMENT (32", 36" & 48" MOWERS) 1. Blade drive belt must be removed from engine pulley before transmission belt can be removed. See blade drive replacement, use steps 4, 5, and 6. Also see figure 4 on page 9. 1. Unhook brake linkage from brake band arm. Located between the rear deck and the rear tire. 2.
Maintenance ITEM FREQUENCY REQUIRED SERVICE REAR TIRES BEFORE EACH MOWING INFLATE TO PROPER PRESSURE FRONT TIRES BEFORE EACH MOWING INFLATE TO PROPER PRESSURE AFTER EACH MOWING REMOVE GRASS & DEBRIS DAILY INSPECT FOR CRACKS/LOOSE HARDWARE UNDERSIDE OF REAR DECK AFTER EACH MOWING REMOVE GRASS & DEBRIS BLADE PULLEYS WHENEVER REMOVED LOCTITE TO SHAFT ENGINE PULLEY WHENEVER REMOVED ANTI-SEIZE TO SHAFT FRONT WHEEL BEARINGS DAILY LUBE WITH GREASE CASTER SHAFTS DAILY LUBE WITH GREASE DA
