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Maintenance Manual for Crawler Crane
During operation, the gear box should be allotted a great amount of oil. As a result, once the
system has completed debug, it’s suggested that inspect the oil level again when the gear has
stopped and refill the oil according to requirements.
When main boom is on the ground, you should change gear oil for hoisting winch 1 (H1) and
hoisting winch 2 (H2).
As for winch gear oil change interval and change amount, please refer to section 6.7.
(1) Pay attention to environmental protection when disposing of waste oil.
(2) Only when the machine has operated for a long time, can the gear oil be changed. It
shall be drained off when the oil is still hot.
4.7.3 Inspection of tightening bolts of winch reducer
Because all tightening bolts use Loctite glue, there is no need to tighten them again. Visual
inspection is enough.
4.7.3.1 Hoisting winch reducer
Figure 4-17 Installation of bolts of hoisting winch reducer
4-23
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