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TM 9-2320-364-34-3
16-220
16-32. CRANE LOAD TEST (CONT).
(6)
Lower hook block (2) and attach hook block to test weight (3,890 to 3,910 lbs. [1,766 to 1,775 kg]).
NOTE
Only use HOIST control lever in Steps (6) through (8). Do not use TELESCOPE or
MAST control levers or test will be invalid.
If crane will not lift test weight in Step (6), crane has failed load test. Perform Follow-On
Maintenance and notify GS Maintenance for repair.
(7)
Lift test weight three to four ft. (0.92 to 1.2 m) up using hoist.
(8)
Lower test weight to ground using hoist.
(9)
Disconnect hook block (2) from test weight.
NOTE
Only use HOIST control lever in Steps (9) and (10). Do not use TELESCOPE or MAST
control levers or test will be invalid.
(10)
Attach hook block (2) to test weight (4,280 to 4,300 lbs. [1,943 to 1,952 kg]).
Using HOIST control lever, crane should lift test weight a maximum of 1 in. (2.5 cm)
before Overload Sensing System (OSS) disables hoist. If hoist lifts test load higher than 1
in. (2.5 cm), OSS is not functioning correctly and crane has failed load test. Perform
Follow-On Maintenance and notify GS Maintenance.
NOTE
OSS disables hoist only in the direction of raising. OSS does not effect hoist lowering.
(11)
Attempt to lift test weight using hoist.
(12)
Lower test weight to ground using hoist.
(13)
Disconnect hoist hook block (2) from test weight.
(14)
Position truck on hard level surface
TEST WEIGHT
3890-3910 LBS
(1766-1775 KG)
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