Maintenance Instructions

CLEANING

GHS Blower

Normally, the GHS blower operates with no maintenance or cleaning. However, when mowing grass that is dirty and damp (especially springtime mow- ing), a deposit of dirt may accumulate inside the blower housing, causing wear and binding of the blower wheel. When operating in these conditions, inspect the blower frequently for dirt buildup.

NOTE: A visual clue of binding of the blower wheel is the blower blade tips are polished from rubbing on dirt.

When a dirt deposit is found, use a high pressure washer or water spray to clean the inside of the housing as follows:

DANGER

Before attempting to wash the blower, stop the engine, remove the ignition key, and disconnect the spark plug wires. Wear goggles or face shield.

1.Remove the GHS blower drive belt tension by depressing the idler pulley on the tightener arm. Roll the belt off the blower pulley. The belt should be clear of the blower pulley, allowing free movement of the blower wheel.

IMPORTANT: With the belt removed, the blow- er wheel must spin freely. Any binding or drag- ging of the wheel is an indication of dirt buildup. This buildup must be cleaned to avoid abrasive wear of the blower blades, ex- cessive power loss and eventual loss of blower performance (clogging).

2.Use a pressure washer or water spray, and di- rect the spray inside the blower housing against the blower blades. Water pressure will cause the blower wheel to begin to spin and the com- bination of spinning action and water will effec- tively wash the inside of the housing. Spray may be directed against the blower blades ver- tically and horizontally to cause rotation in both directions for thorough washing action. Wash blower until the blower wheel spins freely in both directions.

3.Reinstall the GHS blower drive belt by reversing the removal procedure.

 

Blower

GHS Blower

 

Drive Belt

Blower

Pulley

 

 

 

Drive Pulley

 

 

Depress Idler Pulley

Down to Relax Belt

Belt Tightener

Idler Pulley

Collapse Blower Belt Tightener to Remove GHS Blower Drive Belt

GHS Exhaust Screen

Refer to Cleaning the GHS Exhaust Screen in Op-

erating Instructions.

Hydrostatic Transmission Cooling Fins

Keeping the cooling fins on the hydrostatic transmissions clean and free of obstruction is essential to avoid overheating the transmission fluid and shortening transmission life. The cooling fins should be checked every 100 hours; and cleaned if necessary.

To clean the fins, use compressed air and/or a pressure washer. The cooling fins extend all the way around the housing -- the fins underneath need to be clean as well as the more visible fins above. Also, pay close attention to the area under the drive pulley.

IMPORTANT: In case an oil leak develops on the input shaft, the cooling fan blowing dusty air and oil on the transmission will quickly pack the cooling fins with oily dirt. If this condition occurs, replace the seal immediately to avoid overheating and damaging the transmission. The input shaft assembly and seal are easily replaced without removing the transmission from the machine.

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