Manitowoc Published 10-01-2012, Control # 045-08 5-3
777 SERVICE MANUAL HOISTS
5
Adjustment
See Figure 5-2 for following procedure.
1. Land load for drum being adjusted.
2. Loosen jam nut on adjusting screw and turn screw away
from lever so screw does not contact switch when step 3
is performed.
3. Pay out wire rope until bail limit rollers are against bare
or lagged drum with three full wraps of wire rope
remaining on drum.
4. Turn adjusting screw against limit switch roller only
enough to “click” limit switch open (light off, if equipped).
5. Securely tighten jam nut on adjusting screw to lock
adjustment.
6. Adjust return spring eyebolt to dimension shown.
7. Spool six to seven wraps of wire rope onto load drum.
Pay out wire rope from load drum. Drum must stop when
there are three to four wraps of wire rope remaining on
drum.
8. If necessary, repeat adjustment.
To Next Page
Loading...
Need help?
General
