Operators Manual Models: 968999117 / W3613ETS 968999120 / W4815ETS Please read these instructions carefully and make sure you understand them before using the machine. MANUAL NO. 539106457 REV.
Thank you for buying an HUSQVARNA! Before operating your new mower, read, understand and follow the important safety instructions and the other instructions contained in this manual. Lawnmowers and all power equipment, can be potentially dangerous if used improperly. SAFETY REQUIRES GOOD JUDGEMENT, CAREFUL USE IN ACCORDANCE WITH INSTRUCTIONS AND COMMON SENSE. INTRODUCTION This manual has been prepared for the operators of the HUSQVARNA 36" and 48" commercial mowers.
Table of Contents SAFETY ................................................................................................. 4 SETUP AND ADJUSTMENTS ................................................................ 5-11 OPERATION .......................................................................................... 11-12 SERVICE ............................................................................................... 13-15 MAINTENANCE CHART ...........................................................
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. 5. Fill gasoline tank before starting the engine. Only use an approved gasoline container.
Setup & Adjustments LINKAGE INSTALLATION 1. Install drive linkage into the hole in the idler arm on the inside of the tank support. The drive linkages are fastened to the drive levers on the handle assembly. Secure the drive linkages to the idler arm by inserting a retaining ring through the small hole in the end of the drive linkage. 2. Install shifter to transmission with 1/4" x 1" screws. The shifter is located in the inner box and hardware is pre-assembled into the bracket on the transmission. 3.
Setup & Adjustments GAS LINE INSTALLATION 1. The gas line is factory installed on the engine. Attach loose end to fuel tank hose barb and secure with hose clamp. BRAKE ROD ADJUSTMENT 1. Make sure the rod is installed into the proper hole in the brake arm. The brake rod should be in bottom hole on the brake arm as shown below. Never use the upper hole. The proper adjustment can not be achived in this position. POSITIONING FRONT CASTER SPACERS 1.
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 7
Setup & Adjustments CUTTING HEIGHT ADJUSTMENT CHART AXLE POSITION NUMBER OF NUMBER OF 1/4" BLADE SPACERS SPACERS BELOW UNDER CUTTER HOUSING CASTER ARM 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 SPACE
Setup & Adjustments BRAKE / TRACTION ADJUSMENT OPERATOR PRESENCE SWITCH ADJUSTMENT The operator presence switches can be adjusted by loosening the screws on the back side of the console and sliding the switch left or right. The O.P. switch plunger should just come in contact with the O.P. lever when the operator presence levers are released. 1. Disconnect the brake linkage from the brake band arm. 2.With the mower in gear, place the drive levers in the drive position.
AUXILIARY BLADE DRIVE BELT (48" MODELS ONLY) To adjust tension of the auxiliary belt rotate nut on linkage that is attached to deck strap located on the right side of cutter deck. See Figure 6. 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.
AUXILARY BELT ADJUSTMENT ROD TURNBUCKLE 1/4" IDLER PIVOT POINT ENGAGEMENT IDLER ASSEMBLY Figure 6 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.
STARTING AND OPERATING ENGINE: START ENGINE AS FOLLOWS: 1. Move blade engagement lever to the off position so the interlock will allow engine to start. 2. Check gear shifter to be sure it is in the neutral position. 3. While on level terrain, squeeze both drive levers and lift up on the neutral bail to lock it into the neutral lock position. 4. Open fuel shut-off valve 5. Set throttle control all the way forward to the choke position. 6. Pull starter rope until engine starts. 7.
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.
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. Tighten the setscrews after you have pinched the assembly together with the blade bolt and nut.
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: AUXILIARY BELT REPLACEMENT (48" MOWERS) 1. Loosen the auxiliary belt adjusting rod. To relieve tension on the belt. See figure 6 on page 11. 2. Remove belt guides from the center spindle. 3. Remove belt. 4. Reverse procedure for replacement. Adjust belt to proper tension. 1. Unhook brake linkage from brake band arm.
Maintenance Chart ITEM FREQUENCY REQUIRED SERVICE Rear Tires ........................................ Before Each Mowing .................... Inflate to Proper Pressure Front Tires ........................................ Before Each Mowing .................... Inflate to Proper Pressure Underside of Mower Deck ................ After Each Mowing ....................... Remove Grass & Debris Mower Deck ..................................... Daily .............................................
Model Number: Serial Number: Date of Purchase: Dealer Information: Notes: 17