PREPARE MACHINE FOR MAINTENANCE
Before performing the following maintenance
procedures and before leaving the operator's seat,
perform the following steps unless another position
is specified in the procedure.
1. Park machine on a level surface.
2. Lower all equipment to the ground.
3. Move transmission selector lever to Neutral.
4. Engage parking brake.
NOTE: Turbocharger may be damaged if
engine is not properly shut down.
5. Run engine at one-half speed without load for 2
minutes.
6. Move engine speed control level to slow idle.
7. Turn key switch to OFF position.
NOTE: If maintenance must be performed with
the engine running, do not leave
machine unattended.
ACCESSING ENGINE
There are two access panels on each side of the
grader. These panels are hinged on one side and
have a latch on the other side. The engine can be
accessed by pushing the latch toward the cab and
rotating the access panel on the hinges.
MAINTENANCE SCHEDULE
The following checklist summarizes scheduled
maintenance and parts and oil required at each
maintenance interval.
Service the machine at intervals shown in the
following schedule. Also, perform service on items
at multiples of the original requirement. For
example, at 500 hours, also service these items, if
applicable, listed under 250 hours, 100 hours and
50 hours.
Procedures for performing each of these
maintenance tasks are provided in the section
SCHEDULED MAINTENANCE PROCEDURES.
As Required
Check, clean, and tighten battery terminals
Check tire pressure
Check belt tension
Grease saddle locking pin holes
Grease circle gear
Check precleaner
Drain fuel tank sump
Clean or replace air cleaner elements
10 Hour Intervals
Check transmission and hydraulic oil level
Check coolant level
Grease frame hinge pivots
Check engine oil level
50 Hour Intervals
Grease front axle pivot
Grease king pins and steering
Grease circle drive gearbox
Grease moldboard pivots
Grease articulated joint
Grease cylinders joints
Grease trunions
Grease front scarifier cylinder
Grease rear scarifier cylinder
Grease drawbar pivot
Change planetary hub oil
250 Hour Intervals
Check battery electrolyte level
Grease tandems
Change engine oil and replace filter
500 Hour Intervals
Check tandem oil level
Check brake accumulator
Change hydraulic return filter
Change transmission oil filter
Change fuel filter
1000 Hour Intervals
Check engine speed
Check hydraulic oil
Check, pack, and adjust front wheel bearings
Check air intake hoses
Clean fuel tank filter
Change transmission oil
Section 4
MAINTENANCE
4-5
785 Motor Grader
Courtesy of Machine.Market
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