Hustler Turf 3500/3700 Introduction, Description of operation, Torque values, Tires, Lubrication

Introduction

Regular maintenance is the best prevention for costly downtime or expensive, premature repair. The following pages contain suggested mainte- nance information and schedules which the operator should follow on a rou- tine basis. For more detailed information refer to the correct parts manual for your unit.

Remain alert for unusual noises, they could be signaling a problem. Visually inspect the machine for any abnormal wear or damage. A good time to detect potential problems is while performing scheduled maintenance ser- vice. Correcting the problem as quickly as possible is the best insurance.

Clear away heavy build-up of grease, oil and dirt, on top of the deck and under the deck areas especially under the deck guards.

Daily inspect mower deck for grass clippings and wire and string tangles. The underside of the mower deck will collect a build-up of grass clippings and dirt, especially when grass is wet or has high moisture content. This build-up will harden, restricting blade and air movement and will probably show a poorer quality of cutting. Therefore it should be removed routinely.

To do this it will be necessary to pivot the deck to the full up position and scrape the build-up from underneath. See Mower Deck Tilt Procedure sec- tion.

Some repairs require the assistance of a trained service mechanic and should not be attempted by unskilled personnel. Consult your Hustler service center when assistance is needed.

Description of operation

The three mower blades are indirectly driven by the tractor engine: Power flows through the mechanical clutch, PTO drive shaft, right angle gearbox, and finally through a V-belt drive system. The V-belt drives three pulleys; each pulley is on top of a spindle housing assembly. The pulleys drive 1” spindle shafts which in turn drive the blades. A blade is affixed to each spindle shaft by a 5/8” bolt.

The mower deck is connected to tractor by attaching the mower tool bar arms to the tractor tool bar with clevis pins and hairpins.

Torque values

WARNING: Particular attention must be given to tightening the blade spindle bolts. Failure to correctly torque these items may result in the loss of a blade, which can cause serious dam- age or personal injury.

Torque values are given below:

Ft-lbs. Nm

Spindle blade bolt (bottom) . . . . . . . . . . . . . 118 . . . . . . . . .160.01 Spindle pulley bolt (top) . . . . . . . . . . . . . . . . 75. . . . . . . . . .101.68

For all other torques refer to the deck parts manuals for standard torque chart.

Tires

It is important for level mowing that the tires have the same amount of air pressure. The recommended pressure is:

Front gauge wheels . . . . . . . . . . . . . . . . . . . . . 8-12 psi (55-83 KPa)

Solid fill tires are not recommended for Hustler turf equipment. On any machine, with solid filled tires, the warranty claim will be denied.

Lubrication

Check gearbox lubricant daily by looking at the sight gauge located on side of gearbox. It should appear half full. Fill as necessary with ISO VG46 oil (Hustler P/N 601621). Fill by removing pipe plug located on top front of gearbox. Add oil until the sight ball floats off of the bottom. Fig. 4-2

Spindle housing, under mower. Lubricate spindle housings annually or after every 750 hours of operation, whichever occurs first. Use no more than one or two ounces of multi-purpose lubricant. Do not force lubricant into grease zerks. Bearings are sealed and do not require much lubrication.

Mower deck tilt procedure

The mower deck is designed to be raised and pinned in an upright posi- tion to allow easier access to the underneath side of the mower deck.

1.Park the unit on a flat surface, raise mower deck and set the parking brake.

2.Shut off engine and remove the ignition key.

3.Pull out on the locking pins attached to the rear height adjusting chains. This allows the rear of the mower deck to move freely. Fig. 4-3

4.Lift the front of the mower deck and pivot it until the holes in the deck and carrier arms are in alignment. Remove the locking pin from the stor- age hole and insert it thru the holes in the deck and carrier arm. Fig. 4-4 and 4-5

WARNING: Until the deck is fully pivoted and locked in the tilted position with the locking pin, it will fall if accidental movement of the tractor’s tool bar lift control lever occurs.

WARNING: The locking pin must be inserted thru both sides of the carrier arm to prevent the deck from falling.

5.Lower the mower deck until the rear anti-scalp roller rests on the ground. Fig. 4-6

6.When finished working on the underneath side of the deck, reverse the procedure and lock the deck in the mowing position before operating the unit.

Cleaning mower deck

DANGER: Before cleaning under mower, make sure the PTO Control Lever is in the “OFF” position. Raise the mower deck to highest position and engage parking brake lever. Turn off engine. Pin deck up in the tilted position using the locking pin. Lower the mower deck until the rear anti-scalp roller rests on the ground.

Plug

Sight gauge

Figure 4-2

Rear height adjusting chain

Locking pins

Figure 4-3

109631_0908 4-3