Manitowoc MLC165-1 Service Maintenance Manual

Reference Only
HOISTS MLC165-1 SERVICE/MAINTENANCE MANUAL
5-32
Published 05-26-17, Control # 238-02
DRUM 3 PAWL
Drum 3 (optional auxiliary/luffing hoist) has a pawl which,
when engaged, prevents the drum from turning in the down
direction.
Operation
Figure 5-23
The pawl is controlled by a park switch in the operator cab:
When Drum 3 Park is turned on, the hydraulic cylinder (1)
retracts and the rotates the pawl (2) into engagement with
the ratchet (3).
When Drum 3 Park is turned off, the hydraulic cylinder (1)
extends and rotates the pawl (2) out of engagement with the
ratchet (3).
It may be necessary to hoist slightly to fully disengage the
pawl from the ratchet.
Maintenance
Daily
Visually check the pawl for proper operation according to the
following procedure.
1. Operate Drum 3 for a short distance, stop the drum, and
place the Drum 3 Park switch on the on position.
• Check that the pawl is fully engaged into the ratchet
of the drum.
• Check that the drum is inoperable in the down
direction.
2. Place the Drum 3 Park switch in the off position.
• Check that the pawl is disengaged from the ratchet.
• Check that the drum is operable in the down
direction.
Monthly
1. Apply 1/2 pump of grease to the fitting in the pawl pin.
2. Wipe off any excess grease in the area.
Adjustment
There is no adjustment for this pawl.
WARNING
Falling Boom Hazard
Before performing the steps in this section, land the loads
and lower the boom onto blocking at the ground level.
There is no positive means of holding the boom up when
the pawl is being serviced.
Figure 5-23. Drum 3 Pawl
Item Description
1 Hydraulic Cylinder
2Pawl
3 Drum Ratchet
WARNING
Falling Boom Hazard
Before performing the steps in this section, land the loads
and lower the boom onto blocking at the ground level.
There is no positive means of holding the boom up when
the pawl is being serviced.

Manitowoc MLC165-1 Specifications

General

Brand	Manitowoc
Model	MLC165-1
Category	Construction Equipment
Language	English