User Manual IK 150 / 0031 e
© 1997 PAT GmbH · D-76275 Ettlingen · Hertzstr. 32 - 34 ·
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13
50 / 150 / 19_0031E.DOC / 19.03.1997 / Rev. C / rk.
After the electrical connections have been checked to insure that the system is properly connected
for the crane configuration, the following checks shall be made:
1.
Check the electrical wiring connecting the various parts of the system for physical damage.
2.
Check the anti-two-block switches and weights for free movement.
3.
Check the spring-loaded cable reel to be sure it is free to rotate, has tension and the cable is
reeled properly.
4.
Check mechanical installation and electrical connection of the force transducer(s) on jibs where
applicable.
WARNING
The following tests shall be performed with care to prevent damage to the machine or injury to per-
sonnel. Proper functioning of the system requires successful completion of these tests before oper-
ating the machine.
If the operator cannot see the load handling device approaching the boom nose, he shall have an
assistant (signal person) watch the load handling device. The operator shall be prepared to stop the
machine immediately should the LMI system not function properly as indicated by lighting the red
warning light (7), sounding the audible alarm (13) and locking the crane movements, hoist up, tele-
scope out and boom down.
Check the anti-two-block alarm light (5) and the audible alarm (13) by performing one of the following
tests:
1.
By manually lifting the weight attached to the anti-two-block switches. When the weight is lifted,
the audible alarm (16) should sound, the anti-two-block alarm light (5) should light.
2.
Slowly raise the main boom load handling device to create a potential two-block condition.
When the load handling device lifts the weight, the audible alarm (13) should sound, the anti-
two- block alarm light (5) should light and the motion of the load handling device should be
stopped. Lower the load handling device slightly to eliminate this condition.
3.
Slowly lower the boom to create a potential two-block condition. When the load handling device
lifts the weight, the audible alarm (11) should sound, the anti-two-block alarm light (5) should
light and the boom lowering function should be stopped. Lower the load handling device slightly
to eliminate this condition.
4.
Slowly extend (telesope) the boom to create a potential two-block condition. When the load
handling device lifts the weight, the audible alarm (13) should sound, the anti-two-block alarm
light (5) should light and the boom telescope out function should be stopped. Lower the load
handling device slightly to eliminate this condition.
WARNING
If the light and audible alarm do not function as described and the crane movements are not
stopped, the system is not working properly. The malfunction shall be corrected before operating the
crane.
5.
If the crane is equipped with a boom extension or jib, repeat the test procedure for the boom
extension or jib anti-two-block switch.
6.
Check that the display of the main boom length agrees with the actual boom length.
7.
Check that the display of the main boom angle agrees with the actual boom angles.
8.
Check that the display of the operating radius of the crane agrees with the actual radius.
9.
Check the load display by lifting a load of known weight. The accuracy of the load indication
shall be within the tolerance of SAE J159.