07-03-19 Control # 091-09 3-7
600H SERIES OPERATOR MANUAL CONTROLS AND OPERATING PROCEDURES
battery(s). Also, if the battery(s) are found to be frozen, do
not attempt to charge them. Remove the battery(s) from the
crane, allow them to thaw, and then charge the battery(s) to
full capacity.
“Slow charging” is preferred to “fast charging.” Fast charging
saves time but risks overheating the battery(s). Slow
charging at six (6) amps or less develops less heat inside the
battery and breaks up the sulfate on the battery plates more
efficiently to bring the battery up to full charge. The use of a
“smart charger” that automatically adjusts the charging
amperage rate should be used.
Anti-Two-Block Check
Check the anti-two-block alarm light and the audible alarm
by lifting the anti-two-block weight until the switch is
activated. To check the anti-two-block switch:
• manually lift the weight.
• slowly raise the hoist cable.
• slowly extend (telescope) the boom.
If the crane is equipped with a jib that is deployed and rigged
for work, repeat the test procedure for the jib anti-two-block
switch.
RCL Check
Perform the following checks to verify proper RCL operation.
• Check that the display of the main boom length agrees
with the actual boom length.
• Check that the display of the main boom angle agrees
with the actual boom angles.
• Check that the display of the operating radius of the
crane agrees with the actual radius.
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.
HOIST SYSTEM OPERATION
The hoist may have lifting capabilities greater than that of the
crane limits. Therefore, care must be taken to ensure that the
load lifted is within the crane rating. General rules for hoist
operation are:
• Unwind the hoist when extending the boom.
• Use the anti-two-block system only as an aid.
• Make sure the rope is not twisted or kinked and that it is
properly seated in the hoist and in sheaves.
• Always have at least three full wraps of wire or synthetic
rope on the hoist.
• Check the hoist brake when approaching the load limit of
the hoist. Raise the load a few inches and return the
control to neutral to check the brake.
• Do not drag the load with the hoist.
• Do not try to lift loads that are not free such as, frozen
down material or poles.
• Keep tension on the rope to prevent it from becoming
twisted, kinked, or improperly seated on the hoist.
Hoist Burst of Speed Operation
To engage Burst of Speed (BOS), push the hoist control
valve lever fully forward. As the hoist control valve lever is
moved forward it contacts a detent. Additional force in the
forward direction overrides the detent and activates the
BOS.
If the BOS feature is used frequently the crane needs to be
equipped with an optional oil cooler.
.
NOTE: Maximum Capacity with “BOS”
• One Part Line - 3000 lbs. (1361 kg)
• Two Part Line - 6000 lbs. (2722 kg)
• Three Part Line - 9000 lbs. (4082 kg)
• Maximum line speed on third layer - 240 FPM
(73 mpm), fourth layer - 265 FPM (81 mpm)
DANGER
The following tests must be performed with caution to
prevent damage to the machine or injury to personnel.
DANGER
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 must be corrected
before operating the crane.
DANGER
If there is a deviation between displayed and actual
values, an authorized RCL service representative shall be
called for repair and/or recalibration of RCL system.
CAUTION
If the BOS feature is run continuously or with an overload,
damage to the crane or truck could occur.
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