Manitowoc MLC165-1 Service Maintenance Manual

Reference Only
Manitowoc Published 05-26-17, Control # 238-02 5-39
MLC165-1 SERVICE/MAINTENANCE MANUAL HOISTS
5
5
Pressure Roller (Drum 3)
See Figure 5-27 for the following procedure.
Daily Maintenance
NOTE The springs (3) for the drum pressure rollers (2) are
not adjustable.
1. Watch the pressure rollers (2, View A) while paying out
and hauling in the wire rope on the drum (1).
The springs (3) must hold the pressure rollers (2) snugly
against all layers of wire rope on the drum — from the
first layer to the last layer.
2. Replace the springs (3) if they lose tension.
Spring Replacement
1. Land the load on the drum and stop the engine.
2. Remove the compression rods (4, View A) from storage.
3. Assemble the compression rods (4) in the caging
position (View B).
4. Tighten the hex nuts (4c), alternating from side to side,
until the springs (3) are compressed and the pressure
rollers (2) are pulled away from the wire rope on the
drum.
5. Attach lifting slings from a hoist to the pressure roller
assembly. It weighs 66 lb (30 kg).
6. Remove the screws (5, View B) and lift the pressure
roller assembly away from the drum (1).
7. Loosen the hex nuts (4c, View B), alternating from side
to side, until the pre-load of the springs (3) is fully
released.
8. Disassemble the pressure roller assembly as needed to
replace parts.
9. Reassemble the pressure roller assembly.
10. Assemble the compression rods (4) in the caging
position (View B).
11. Tighten the hex nuts (4c), alternating from side to side,
until the springs (3) are compressed.
12. Attach lifting slings from a hoist to the pressure roller
assembly. It weighs 66 lb (30 kg).
13. Lift the pressure roller assembly into position at the
mounting plate.
14.
Apply Loctite
®
243 to the threads of the cap screws (5).
15. Install the screws (5) to attach the bracket (6) to the
mounting plates.
If necessary, tighten the hex nuts (4c), alternating from
side to side, to further compress the springs (3).
16. Fully loosen hex huts (4c), alternating from side to side.
17. Remove the compression rods (4) from the caging
position (View B).
18. Store the compression rods (4, View A).
WARNING
Flying Object Hazard
The pressure roller springs for Drum 3 are pre-loaded.
Do not attempt to remove the Drum 3 pressure roller
assembly until the springs are compressed.
Parts will fly apart with violent force if this precaution is
ignored.

Manitowoc MLC165-1 Specifications

General

Brand	Manitowoc
Model	MLC165-1
Category	Construction Equipment
Language	English