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10.3 MAINTENANCE EVERY 50 HOURS
[1] GREASING MACHINE UNITS
• Grease type varies with greasing points. Failure to grease properly may cause the machine to
shorten its useful life. See the following table for grease types.
• Greasing a new machine is required once every 10 hours until the machine attains the first 100
hours of operation, this is the running in period.
• Use proper grease specified below according to the greasing points.
Greasing of the boom mounting pin
Greasing of the derrick cylinder bottom mounting pin
Greasing of the derrick cylinder rod mounting pin
Greasing of the guide sheave
Greasing of wire support roller pin
Greasing of the hook block
Greasing of accelerator pedal shaft
Greasing of rod guide inside surface of derrick cylinder
Greasing of the boom slide plate
Greasing of both sides and bottom of a boom
Greasing of the winch wire rope
1. With the use of the grease gun, grease the greasing points (No.1 to 7) specified in the above table
through corresponding grease plugs. (See the following page)
2. Wipe off old grease squeezed out after greasing.
3. Place the left work equipment control lever in the “Extend” position (push it toward the front) to extend
the boom for greasing both sides and bottom of the boom and wire rope.
4. Apply red rope grease to prevent wire rope abrasion and rust formation.
With the rope surface cleaned, grease the rope with a brush.