Lubricate Tandem Pivots
Lubricate tandem pivot with 3 or 4 shots of grease
at each of the fittings; see Figure 9.
Figure 9. Tandem Pivot Left Side
DRAINING THE COOLING SYSTEM
The cooling system should be drained and flushed
every two years. Replace thermostats and refill with
new coolant.
CAUTION: Hot coolant can cause serious
injury.
1. Shut off engine.
2. Only remove filler cap, Figure 10, when cool
enough to touch with bare hands.
3. Slowly loosen cap to first stop to relieve
pressure before removing completely.
4. Connect a hose to draincock on radiator.
5. Turn draincock counterclockwise to open valve.
Allow coolant to drain into a container. Dispose
of used coolant properly.
6. Remove engine block plug to drain engine
block. Allow coolant to drain into a container.
Dispose of used coolant properly.
Figure 10. Radiator
7. Close draincock.
8. Install engine block plug.
FILLING THE COOLING SYSTEM
All machines are shipped from the factory with a
50-50 mixture for protection to -34°F (-37°C).
Adjust mixture accordingly to provide freeze
protection for your machine.
NOTE: After filling radiator, operate engine 15-
30 minutes to purge air from the engine
block. Shut off engine and add coolant
to the radiator. Start engine and run
until engine is at normal operating
temperature. Stop engine and verify
that radiator is completely full.
INJECTION NOZZLES AND PUMP
Do not service or remove injection nozzles. The
service life of the injection nozzle may be
shortened by:
Overheating
Poor quality fuel
Improper operation
Excessive idling
If injection nozzles are not working correctly or are
dirty, the engine will not run normally. See your
authorized dealer for service.
NOTE: Do not adjust injection pumps.
Section 4
MAINTENANCE
4-13
785 Motor Grader
Courtesy of Machine.Market
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