4-50 Inspection, Maintenance and Adjustment K1000896E Operation and Maintenance Manual
2,000 HOUR / YEARLY SERVICE
PERFORM ALL DAILY, 50, 250, 500 AND 1,000 HOUR SERVICE CHECKS
CHECK STEERING, BRAKE, DRIVE SHAFT, ENGINE, AND FUEL SYSTEM
REPLACE PIPES AND HOSES
1. Replace hoses that carry brake fluid to wheel brakes. Also, replace hoses that carry hydraulic fluid to
steering cylinders.
2. It is difficult to determine condition of many hoses. The best way to ensure safe operation and to
maintain maximum performance is to replace hoses on a regular basis. If any brake or steering hoses
become damaged or appear defective in any way, replace them immediately despite time interval
since their last replacement.
BLEED BRAKES
When brake hoses or brake tubes are replaced, air can be introduced into brake hydraulic system. Air can
cause brakes to operate intermittently, which is a dangerous condition. Never operate machine with air in
brake hydraulic system. A spongy feel when pressing brake pedal is a sign that air is present in brake
hydraulic system.
To bleed air out of brake hydraulic system,
perform the following steps:
1. Start engine and place transmission in
"NEUTRAL."
Figure 85
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