Manitowoc 18000, Service Maintenance Manual, Page: 241 / 316

Reference
Only
Manitowoc
Published 12-05-17, Control # 035-23
6-1
18000 SERIVCE/MAINTENANCE MANUAL SWING
6
SECTION 6
SWING
MANUAL RELEASE OF SWING BRAKE AND
LOCK
NOTE: The swing lock is installed on past production
cranes only. Current production cranes will have
the swing lock removed.
The hydraulic swing brake and hydraulic swing lock must be
released when the swing planetary is removed and
reinstalled to allow alignment of the gear teeth in the swing
shaft with the teeth in the ring gear.
Manual Release Procedure
See Figure 6-1 for the following procedure.
Hydraulic hand pumps with pressure gauge are needed to
manually release the swing brake and swing lock.
1. Disconnect hoses from fitting at brake release port and,
if equipped, at swing lock OUT port.
2. Attach hand pump to each port — brake release and
swing lock OUT.
3. Pressurize brake and swing lock to 350 psi (24 bar).
4. Remove or install swing planetary.
5. Relieve pressure and remove hand pumps.
WARNING
Unexpected Crane Movement!
Crane can swing suddenly when swing brake is released.
Before releasing swing brake, secure crane by lowering
boom onto blocking at ground level to prevent sudden
uncontrolled swinging.
Procedure given in this section is for servicing purposes
only. Swing brake and swing lock must be fully operational
when operating crane.
CAUTION
Avoid damage to parts!
Do not exceed 350 psi (24 bar) pressure when releasing
swing brake or swing lock.
P899
Brake
Release
Port
(06 ORS)
Swing Lock
“Out” Port
(06 ORS)
FIGURE 6-1