Check Automatic Grease System; Periodic Checks; Refilling Grease; Greasing Procedure - Komatsu PC290LC-11 Operation & Maintenance Manual
Hydraulic excavator
Hide thumbs
Also See for PC290LC-11:
- Operation & maintenance manual (41 pages) ,
- Shop manual (61 pages)
Table of Contents
Advertisement
MAINTENANCE PROCEDURE
If a breaker or other attachment is installed, perform the air bleeding procedure until the air is completely bled
from the attachment circuit.
1.
Turn the fuel control dial to Low idle (MIN) position.
2.
Repeat operating the attachment approximately 10 times to bleed air.
3.
Check that there is no leakage of oil and wipe off any oil that is spilled.
4.
After completing the air bleeding operation, check the oil level, and if the oil level is low, add oil.
CHECK AUTOMATIC GREASE SYSTEM
PERIODIC CHECKS
1.
Check the grease level in the reservoir, but do not refill the reservoir before minimum level is reached.
2.
Check the in-cab display is functioning.
3.
Check if the selected interval time is correct for the working conditions of the machine.
4.
Check the pump for damage and leakage.
5.
Check the grease pipes for damage and leakage.
6.
Check the condition of the grease points served by the system. Sufficient fresh grease should be visible.
7.
Check the operation of the system. Perform a cycle test.
8.
Check the pump unit and its surroundings. Attention - avoid using high pressure wash directly on the pump.
9.
Replace or clean the pump filler filter (behind the connector on the reservoir) every 500 hours.
REFILLING GREASE
If the yellow lamp (5) on the in-cab display (2) illuminates, the
minimum grease level in the reservoir has been reached. The
grease reservoir must be refilled as soon as possible.
GREASING PROCEDURE
1.
Remove the dust cap from the filler coupling (7).
2.
Carefully clean the filter coupling (7) and the filler coupling on the filler hose.
3.
Fix the filler hose onto the filler coupling (7).
4.
Fill the reservoir up to the maximum level indicated on the reservoir (8).
5.
Remove the filler hose and fit the dust cap.
6.
Fix the filler hose onto the filler coupling of the filler pump
so that filler hose stays clean.
4-38
MAINTENANCE
KS000880
KS000881
Advertisement
Chapters
Table of Contents
