Maintenance work on the superstructure
8.3 Hoists
16.11.2018
Maintenance manual 3 302 756 en 8 - 15
GMK6400
Draining oil
• Place a receptacle under the pipe (3).
• Unscrew bolts (1) and (6) and allow the oil to
drain.
• Replace the gaskets and secure the hose (5)
with the screw (6).
Topping up the oil
• Fill the oil through the pipe (3) up to the
Max. mark (4).
• Replace the gaskets and secure the hose (2)
with the screw (1).
Checking the oil
H
Check the waste oil for abrasion particles or have it tested in a laboratory:
• Pour the waste oil through a clean filter mat.
• Examine the oil or the residues on the filter mat using a magnifying glass.
If you find abrasion particles or solid materials on the mat, the hoist gear
must be dismantled and inspected by the manufacturer.
H
Some abrasion particles may appear in the first oil filled. If you notice such
particles during the first oil change (after 200 oper. hrs.), first consult
Manitowoc Crane Care, before initiating any further measures.
G
Risk of accidents due to falling loads!
If this inspection is not performed, there is a risk of damage to the hoist gear
which could lead to the load falling.
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