Manitowoc MLC650 Service Maintenance Manual

Reference Only
Manitowoc Published 09-09-16, Control # 229-09 6-9
MLC650 SERVICE/MAINTENANCE MANUAL SWING SYSTEM
6
6
MANUAL RELEASE OF SWING BRAKE
See Figure 6-9 for the following procedure.
When removing or installing a planetary drive, the swing
brake must be released to allow alignment of the planetary
drive pinion gear with the carbody ring gear.
NOTE: A hydraulic hand pump with a pressure gauge is
needed to manually release the swing brake.
1. At the planetary swing drive (1), disconnect the swing
brake hose from the brake release port fitting (2).
2. Connect the hand pump hose to the brake release port
fitting.
3. Using the hand pump, pressurize the brake to 18 bar
(261 psi).
4. To apply the swing brake, relieve hydraulic pressure to
the brake.
5. Disconnect the hand pump hose from the brake release
port fitting.
6. Connect the swing brake hose to the brake release port
fitting.
WARNING
Unexpected Crane Movement!
Avoid possible injury. When the swing brake is released,
the crane can suddenly swing. Before releasing the swing
brake, secure the crane by lowering the boom onto
blocking at ground level to prevent sudden uncontrolled
swinging.
The swing brake manual release procedure is for
servicing purposes only. Do not operate the crane unless
the swing brake is fully operational.
CAUTION
Avoid Damage to Parts!
Do not exceed 18 bar (261 psi) pressure when using a
hand pump to release the swing brake.
FIGURE 6-9
Item Description
1 Planetary Swing Drive
2 Brake Release Port Fitting

Manitowoc MLC650 Specifications

General

Brand	Manitowoc
Model	MLC650
Category	Construction Equipment
Language	English