
7 - MAINTENANCE
Replace hydraulic oil filters (Initial)
WARNING
Pressurized hydraulic fluid can penetrate the skin and cause severe injuries.
Hydraulic fluid is under extreme pressure. Rest the bucket or attachment on the ground. Shut the
engine off, turn the key on, and move the hydraulic control lever through all movements several times
to relieve residual pressure in the system.
Failure to comply could result in death or serious injury.
W0161A
WARNING
Pressurized fluid can penetrate the skin and cause severe injuries.
Keep hands and body away from any pressurized leak. DO NOT use your hand to check for leaks. Use
a piece of cardboard or paper. If fluid penetrates the skin, seek medical attention immediately.
Failure to comply could result in death or serious injury.
W0158A
Replace the hydraulic oil filter when the hour meter registers 100 hours for a new machine during the initial run-in
period. The filter should be changed every 2000 hours thereafter or more frequently when operating conditions are
severe.
Prior operation:
Keep all unauthorized personnel clear of the area. Park the machine on level ground, in neutral with the parking
brake applied, and the attachment lowered to the ground. Make sure that all residual pressure is relieved from circuits
before beginning maintenance. Install the transport service link to prevent unexpected articulation.
1. The hydraulic oil filler cap is located on the rear of the
machine.
2. Stop the engine. Put a Do Not Operate tag on the key
switch.
3. Make sure the accumulators on the machine are com-
pletely discharged.
4. Clean the area around the hydraulic oil filler cap, and
slowly loosen the cap to release any remaining pres-
sure.
RAPH12DOZ128AA
1
5. Remove and replace the hydraulic oil filter
(1)
. Turn the
filter counter clockwise to remove.
6. Clean the contact surface on the filter head. Make sure
that all dirt and gasket material has been removed.
7. Apply a thin coat of clean oil to the hydraulic oil gasket
and threads.
8. Install and tighten the new filter cartridge firmly to the
filter head by hand. Do not use a filter wrench to tighten
the filter.
RAIL13DOZ1699AA
2
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Summary of Contents for 2050M
Page 22: ...1 GENERAL INFORMATION 1 16 ...
Page 106: ...4 OPERATING INSTRUCTIONS 21 Check the controls for correct operation 4 4 ...
Page 136: ...5 TRANSPORT OPERATIONS 5 14 ...
Page 196: ...7 MAINTENANCE RAIL13DOZ1597GA 1 7 40 ...
Page 197: ...7 MAINTENANCE RAIL13DOZ1598GA 2 7 41 ...
Page 198: ...7 MAINTENANCE RAIL13DOZ0003GA 3 7 42 ...
Page 264: ...7 MAINTENANCE RAIL12DOZ1024FA 2 7 108 ...