Hustler Turf Comprehensive Guide on Using Hustler Hydraulic Fluid in Lawn Mowers

Models: 4420 4500 4400 4200 4300

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Hood

Seat Platform

 

 

Forward

Hood

Rod

Figure 5-10

Screen

Reservoir

Figure 5-11

The engine hood at rear is hinged. To raise it, unfasten the two latches and tilt hood up and forward. A hood support rod is stored clipped to the bottom side. Insert this rod in the hole provided in the rear support on right side (Fig. 5-10).

Access to the hydraulic reservoir and pumps is gained by pulling forward on the spring latch (located at the front of the operator’s seat platform) and tilting the seat up and forward.

Hydraulic system

IMPORTANT: Never use hydraulic or automatic transmission fluid in this system; use only motor oil as specified. Always keep quick-release couplers capped when separated and wipe them clean before connecting. Remember, dirt is the prime enemy of any hydraulic system.

WARNING: Hydraulic oil escaping under pressure can penetrate skin. 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. Lower all attachments and shut off engine before opening any hydraulic lines.

The 3.5 U.S. gallon (13.2 liter) hydraulic oil reservoir is located under the tractor seat platform (Fig. 5-11).

Check level of oil in hydraulic system after every 100

hours of tractor operation or monthly, whichever occurs first. Check more often of system appears to be leaking or otherwise malfunctioning.

Fluid level should touch the bottom of screen under filler cap. Use only SAE 10W40 SG, SF/CC, CD service motor oil.

Change hydraulic system filter element after first 50 hours of tractor operation, then replace filter and oil in reservoir every 1000 hours or annually, whichever occurs first. When changing hydraulic oil use one unit (approximately 7 oz.) of Lubrizol additive (Hustler P/N 027912). This additive, available from your Hustler dealer, will increase the performance life of the hydraulic system components.

Filter is located to the left of reservoir and is accessible from underneath (Fig. 5-12). A standard oil filter wrench is used to change filter, threads are right handed. Use a 10 micron, 700 psi filter element only.

IMPORTANT: Fill the filter element with clean oil, before installing, to prevent drawing air into the system pumps.

1.Fill the filter element with approximately 1.8 pints (0.82 liter) clean system oil. Smear a light coating of oil on upper surface of rubber seal.

2.Install the filter element on base, tighten 1/2 turn after initial gasket contact - DO NOT OVERTIGHTEN.

3.Start tractor engine, engage the hydraulic pump clutch and let it run at approximately 2/3 throttle for a few minutes to work any trapped air out of the system before stroking the wheel motor control levers.

4.Disengage the pump clutch lever, stop the engine and check the filter and connections for leaks.

5.Check hydraulic reservoir for specified oil level. Add clean oil as necessary.

NOTE: The hydraulic pump is equipped with tow valves. For more information refer to Operation section, Moving tractor with stalled engine.

Fuel system

WARNING: Observe usual fuel handling precautions; do not smoke while refueling, do not fill tank with engine running or while engine is hot; allow engine to cool before storing machine inside a building, keep fuel away from

Hydraulic

Filter

Turn As Indicated To

Remove

Figure 5-12

5-12

728444 Rev. 11/02

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Hustler Turf 4300, 4420, 4400, 4200, 4500 owner manual Hydraulic system, Fuel system