Maintenance Instructions

LUBRICATION/CLEANING

Changing Hydrostatic Transmission Fluid

The hydrostatic fluid should be changed every 1000 hours or two (2) years. Also, the fluid should be changed if the natural color of the fluid has become black or milky (indicating possible overheating or water contamination of fluid). The transmission may be refilled using any of the fluids listed in Specifications. The fluid is changed as follows:

1.Park the mower on a level surface and stop the engine.

2.Remove the lower drain plug and the air bleed plug. Allow the fluid to drain out.

IMPORTANT: Clean any dirt from around the plugs and reservoir cap before removing them.

3.Reinstall the lower drain plug, making sure the rubber O-ring on the plug is in place and in good condition.

4.Refill the transmission through the air bleed plug hole until it is as full as possible.

IMPORTANT: Avoid fluid contamination when filling the transmission. Use clean container, spout, funnel, etc. when pouring the fluid into the air bleed opening and reservoir.

5.Rotate the transmission input shaft about five (5) revolutions to allow any trapped air to escape.

6.Before installing the air bleed plug, fill the reser- voir with fluid allowing a small amount to leak out of the air bleed plug hole.

7.Install the air bleed plug and fill the reservoir to the COLD level line.

CLEANING

Engine Air Cleaner System

Donaldson Radialseal™ Air Cleaner

A remote mounted Donaldson Radialseal™ air cleaner provides the air filtering function. The paper filter element slides over an outlet tube inside the air cleanercanisterwithradialsealingaction,eliminating thepossibilityofdustleaksduetoimproperfilterinstal- lation. Intake design, internal baffling, and a Vacuator™ valve provide dust separation and automatic precleaning action. Daily or frequent servicing oftheaircleanerisnotrequired.Usetheairrestriction gauge on the air cleaner outlet to indicate when the air filter needs servicing -- a red flag will appear when the filter is overly restricting airflow into the engine. IMPORTANT: Use only Donaldson air filter elements for replacement (Donaldson P822686 or Walker 5090-1). Aftermarket filters may not seal properly or filter efficiently.

CanisterCover

Cover Latch

Radialseal™

 

Vacuator™

Filter Element

 

Valve

 

 

 

Air Cleaner Components

(shown with cover being removed)

IMPORTANT: The Donaldson air cleaner uses a dry paper-type air filter element. NEVER apply oil to the paper element.

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