TM 55-1930-209-14&P-13
2-11.2 Using crossover for trolley transfer. To transfer trolley from one side to the other, with or without load,
perform the following procedures:
a.
Move both portside and starboard side cranes to crossover (Figure 2-7).
b.
Align portside crane with crossover and pull interlock rope until interlocks engage.
c.
Align starboard side crane with crossover and pull interlock rope until interlocks engage.
d.
Use movement chain to move trolley from one crane to the other.
e.
Upon completion of moving trolley, disengage both crane interlocks by pulling interlock ropes.
2-11.3 Using jib rail for moving loads through sliding door. To use jib rail and trolley hoist for on loading or off
loading equipment, perform the following procedures:
a.
Remove four bolts (Figure 2-8) from captive storage positions in jib rail base.
b.
Remove jib stowing rod that holds jib rail in aft stored position.
c.
Swing jib rail to loading position and return stowing rod to its position for storage.
d.
Secure jib rail with bolts removed in step a. Make sure crane rail and jib rail are properly aligned.
e.
Slowly move trolley hoist to jib rail crossover.
f.
When crossover and jib rail are realigned, pull interlock rope to retract interlock safety stops.
CAUTION
Do not move trolley hoist onto crossover until jib rail is secure in loading position.
g.
Transport load using either 5-ton trolley or 2-ton electric hoist, whichever is applicable.
2-11.4 Placing jib rail in stowed position
a.
Move trolley hoist onto bridge crane.
b.
Pull interlock rope to engage interlock safety stops.
c.
Remove four bolts securing jib rail.
d.
Remove stowing rod from storage position and swing jib rail to stowed position (Figure 2-8)
e.
Fasten rail in aft stowed position with stowing rod.
f.
Reinstall four bolts into captive nuts so that bolts are available for future use.
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Operation under extreme conditions. Operating the bridge crane system in extreme hot or cold temperatures
creates a special problem with lubricants. As a result, ambient temperatures above 150 degrees F or below 15 degrees
F may cause hoist to move slower or faster than normal. To ensure safe and efficient operation of bridge crane system,
use cold weather lubricants during extreme cold weather, and hot weather lubricants during extreme hot weather.
Information about other problems that occur during operation under extreme conditions is in the manufacturers' service
manuals/instructions listed in Section VI.
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