Checking The Sheaves; Checking The Locking System - Manitowoc Grove GMK 5200-1 Maintenance Manual

Maintenance work on the superstructure
8.7 Main boom
8.7.3
8.7.4
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Checking the sheaves

Have damaged, worn, stiff or extremely soiled sheaves replaced by
Manitowoc Crane Care

Checking the locking system

Risk of accidents if maintenance work is not carried out.
Have the maintenance work on the main boom locking system performed
regularly by
Manitowoc Crane Care
This prevents the complete unlocking of a telescopic section in emergency
operation/emergency program mode, which could cause serious accidents
and damage to the truck crane.
•
Have the main boom locking system checked regularly by
or an authorised GROVE dealer.
Crane Care
•
Check all sheaves (1) on the main boom
head (2) for damage, wear, mobility and
heavy soiling.
or an authorised GROVE dealer or your repair crew.
or an authorised GROVE dealer.
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Manitowoc
Maintenance manual
GMK5200-1