Manitowoc 2250 Service Maintenance Manual

Reference Only
Manitowoc Published 07-19-16, Control # 249-01 6-1
2250 SERVICE/MAINTENANCE MANUAL SWING
6
SECTION 6
SWING
MANUAL RELEASE OF SWING BRAKE
This procedure is for servicing purposes only. The swing
brake must be fully operational when operating the crane.
When removing or installing the swing planetary, the
hydraulic swing brake must be released to allow alignment of
the swing shaft gear teeth and the ring gear teeth.
Figure 6-1
shows the swing planetary and brake release
port.
Manual Release Procedure
A hydraulic hand pump with a pressure gauge is needed to
manually release the swing brake as follows.
1. Disconnect the hose from the fitting at the brake release
port.
2. Attach a hand pump to the brake release port.
3. Pressurize the brake to 24 bar (350 psi).
4. Remove or install the swing planetary as necessary.
5. Relieve the pressure and remove the hand pump.
WARNING
Unexpected Crane Movement!
Avoid personal injury and equipment damage. The crane
can swing suddenly when the swing brake is released.
Before releasing the swing brake, secure the crane by
lowering the boom onto blocking at ground level to
prevent sudden uncontrolled swinging.
FIGURE 6-1
Brake Release Port
(06 ORS fitting)
P899
CAUTION
Damage to Parts!
Excessive hydraulic pressure can damage hoses, fittings,
and/or other components.
Do not exceed 24 bar (350 psi) of pressure when
releasing the swing brake.

Manitowoc 2250 Specifications

General

Brand	Manitowoc
Model	2250
Category	Construction Equipment
Language	English