TM 55-1930-209-14&P-13
4-17.4 Test. IDS must perform and record an annual proof and function test and safety inspection in accordance with
TB 43-0142.
4-17.5 Repair. Repair and replace parts discussed in paragraph 4-17.3 as necessary. Perform maintenance as given
on pages 7 through 9 in the Chester Hoist Division Parts and Instruction Manual Low Headroom Manual in Appendix B.
Also reference the parts list for the 1 1/2-ton trolley hoist and exploded views on pages 10 through 27 of the same
instruction manual.
4-17.6 Replacement.
a.
Removal
(1)
Make sure bridge crane system is electrically dead by opening (OFF) and redtagging circuit breaker
P16 on switchboard.
(2)
Remove stop on end of track.
(3)
Remove trolley from track after securing chains and providing means to safely lower trolley.
b.
Installation. Install trolley in reverse order of removal procedure.
Table 4-1. Void 4 Trolley Hoist Troubleshooting
Condition
Possible Cause
Suggested Action
1.
Trolley hoist hook difficult
a.
Load to be hoisted exceeds
a.
Reduce load to hoist capacity
to lower or raise
hoist capacity
b.
Hoist up-down chains kinked
b.
Straighten chains. Inspect for
or twisted
damage
c.
Hoist not properly lubricated
c.
Lubricate in accordance
with instructions contained
in manufacturer's manual (see
page 9, section 825 of parts and
instruction manual - low head
room, ZLP-ZLG services,
Chester Hoist Div.,
Monogram Industries, Inc.)
d.
Hoist internal brake has
d.
Inspect and adjust as
excessive clearance
required
2.
Trolley hoist has scuffing
a.
Rails worn or severely pitted
a.
Inspect rails, determine con-
action while rolling along
ditions and repair as required
rails
b.
Trolley wheels improperly
b.
Check trolley wheels for
installed or worn excessively
proper installation and wear.
Adjust or repair as required
4-5
