Method For Lubricating - Komatsu PC290LC-11 Operation & Maintenance Manual
Hydraulic excavator
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Also See for PC290LC-11:
- Operation & maintenance manual (41 pages) ,
- Shop manual (61 pages)
Table of Contents
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MAINTENANCE
METHOD FOR LUBRICATING
NOTICE
•
If any unusual noise is generated from any greasing point, perform greasing regardless of the
greasing interval.
•
Perform greasing every 10 hours for the first 50 hours of operation on a new machine.
•
After the machine is subjected to digging work in the water, be sure to grease the wet pins.
•
When performing heavy-duty operations, such as hydraulic breaker operations, perform the greas-
ing every 100 hours.
1.
Set the work equipment on the level and firm ground in the
maintenance posture as shown in the figure, then lower it
to the ground and stop the engine.
2.
By using a grease pump, pump in grease through the grease fittings shown by arrows.
(1) Boom cylinder foot pin (2 places)
(2) Boom foot pin (2 places)
(3) Boom cylinder rod end (2 places)
(4) Arm cylinder foot pin (1 place)
(5) Boom and arm connection pin (1 place)
(6) Arm cylinder rod end (1 place)
(7) Bucket cylinder foot pin (1 place)
3.
After greasing, wipe off any old grease that is pushed out.
MAINTENANCE PROCEDURE
4-45
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