Manitowoc Published 07-19-16, Control # 249-01 5-19
2250 SERVICE/MAINTENANCE MANUAL HOISTS
Band Disassembly and Assembly Notes
See Figure 5-14 for the following.
Each clutch band consists of two segments fastened
together with a connecting plate and capscrews (see View
B). This arrangement makes the band easier to
disassemble.
When reassembling a clutch band, match the numbers
stamped on each end of the band segments with the number
stamped on the connecting plate for proper assembly.
NOTE: Using band segments from different drums may
make assembly difficult.
Do not mix band segments from one drum with
those from another drum. Always keep band
segments in a matched set.
Overhauling the Clutch Cylinder
Removing the Cylinder
See Figure 5-14 for the following procedure.
1. Read the precautionary steps given in Inspection and
Adjustment on page 5-16.
2. Remove the guard (3) covering the brake flange and
clutch assembly.
To remove the guard, it is necessary to remove the nuts
retaining the brake band supports (5).
3. Rotate the air cylinder (13) to its most accessible
position.
4. Release the clutch. See the procedure in .
5. Support the rod end (18) of the cylinder and remove the
rod end pin (1).
6. Stand clear of the cylinder and apply the clutch (cylinder
rod (17) will retract). See the procedure in .
7. Disconnect the air line (12) from the end of the cylinder.
8. Remove the head end pin and remove the cylinder from
the crane. The cylinder weighs approximately 32 kg
(70 lb).
WARNING
Personal Injury Hazard!
The clutch cylinder is spring-loaded and will fly apart with
dangerous force if not disassembled correctly.
Disassemble the cylinder according to the following
instructions.
To Next Page
Loading...
Need help?
General
