Hustler Turf 3700, 3500 Transmission, front axle and hydraulic system, Checking Oil Level

Alternator

adjusting Fan belt bolts

Figure 4-21

Transmission, front axle and hydraulic system

WARNING: Hydraulic fluid escaping under pressure may have sufficient force to penetrate skin and cause serious injury. Foreign fluid injected into the skin must be surgically removed within a few hours by a doctor, familiar with this form of injury, or gangrene may result.

Before applying pressure to hydraulic system, make sure all connections are tight and all hoses and lines are in good condition. To find a leak under pressure, use a piece of cardboard or wood — never use your hands. Relieve all pressure in the system before dis- connecting or working on hydraulic lines. To relieve pressure, lower all attachments and shut off engine.

Checking Oil Level:

Check the oil level every 50 hours.

1.With the tractor standing level and the engine off, check the oil level with the dipstick. Figure 4-22

2.The oil is at the correct level when the oil level is within the mark at the lower end of the dipstick. If low, add ISO VG46 hydraulic oil, through the filler hole. Do not fill beyond the mark on the stick, as the transmission will be overfilled.

3.Install the dipstick.

Changing Oil & Filters:

NOTE: Replace the filters after the first 50 hours of opera- tion and every 500 hours or annually thereafter following the procedure below:

Change the oil every 500 hours or annually.

1.With the oil at normal operating temperature, drain and discard the oil by removing the transmission drain plug. Reinstall the plug after the oil has drained. Figure 4-23

WARNING: The oil will be hot. Use caution to pre- vent skin coming in contact with hot oil.

2.Unscrew the oil filters and discard. Figure 4-24 & Figure 4-25

3.Coat the gasket on the new filters with a film of oil.

Dipstick

Filler hole

Figure 4-22

Screw the filters into place until the gasket contacts the sealing surface, then tighten the filters approximately 3/4 of a turn by hand. Do not over tighten. Figure 4-24 & Figure 4-25

4.Remove the filler plug and dipstick and fill with ISO VG46 hydraulic oil.

5.The transmission is filled to the correct level when the oil level is within the mark at the lower end of the dipstick. Do not fill beyond the mark on the stick, as the transmission will be overfilled.

6.Install the dipstick and filler plug.

7.Start the engine and check the hydraulic oil filter for leaks.

8.Stop the engine and check the hydraulic oil level. Replenish if necessary.

IMPORTANT: The transmission, front axle and hydraulic system operate from a common oil sump. Special attention must be given to keeping oil clean.

Drain plug

Figure 4-23

Rear axle case and final reduction gear cases Check the oil level every 100 hours.

1.Clean the area around the dipstick/filler plug to prevent dirt from entering the rear axle housing. With the engine off and the tractor standing level, check the oil level using the combined dipstick/filler plug. The oil is at the correct level when it reads between the two marks on the dipstick.

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