Spring Tensioning Fixture - Adjusting The Chain Tension - Manitowoc GHC75 Maintenance Instructions Manual

undercarriage

Spring tensioning fixture - adjusting the chain tension

7.3 Spring tensioning fixture - adjusting the chain tension
L DANGER
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Risk of death from ejecting grease!
Without lubricating nipples or valve in place, lubricating
grease sprays out under high pressure and the valve will be
ejected from the machine. Persons could be injured or killed.
– Never take completely the valve or the lubricating nipples
completely off.
– Always use a suitable extension for the grease gun in
order to work at a necessary safety distance from the
access hatch.
Position the machine on level and solid ground.
1.
Prepare the grease gun (A).
2.
Remove screws (B), the washers (C) and the cover (D).
3.
Introduce connection hose (E) into the lubricating valve F.
4.
Inject lubricating grease. Interrupt the process from time to
5.
time to verify the sag.
If the chain is tensioned too tight, loosen valve (F) slightly so
6.
that the excess lubricating grease escapes via the vent
opening and chain loosens.
Reattach cover (D), washers (C), and the screws B.
7.
Repeat the procedure on the opposite crawler track.
8.
Preliminary
GHC75 Telescopic crane
Crane Care
21.12.2017