Chapter 2 - Operation
2-4
MAIN
E
XTENSION
E
XTEND
R
ETRACT
R
OT
C
W
M
AIN
D
OWN
E
XTENSION
D
OWN
R
OT
C
CW
U
P
U
P
PULL
PUSH
C
ONTROL
F
LOW
WINCH
WINCH
Manual Override Pull
Function
The knurled sleeve is pulled all
the way out together with the
knob to manually override the
pull solenoid function.
Manual Override Push
Function
The knurled sleeve should first
be pulled to unlatch the ball
latching mechanism and then,
while holding the sleeve back,
the override knob should be
pushed all the way in to
override the push solenoid.
Crane Precautions
1. Movement of the control levers should be
slow and smooth to meter oil flow for safe
operation. Avoid jerky and sudden
movements.
2. The crane controls should be clearly marked
with decals. If these are missing or
illegible,replace immediately. (See Chapter 5:
Decals)
3. Lift load slightly off the ground to check the
safety of the cargo. Do not use stability to
determine the safety. Consult the capacity
charts and strictly adhere to them.
4. Be constantly aware of the boom position
when operating the controls.
5. The boom tip should be centered directly over
the load before making the lift to avoid
swinging.
6. Do not drag loads with the crane.
7. Do not attempt to lift fixed loads.
8. Do not load boom in a sideways direction.
9. Know the weight of the rigging and load to
avoid overloading the crane.
10. Do not extend or rotate a load over anyone.
11. Wear protective gear such as hardhat, safety
glasses, steel-toed boots, and gloves.
Hook Precautions
1. Hooks are designed and manufactured to lift
specific loads. The specified rated load of a
hook applies to loads held uniformly in direct
tension and does not take into account shock
loads, hook tip loading, side loading, bending,
torsional, or related loads.
2.
Do not attempt to lift a load that is larger than
the load rating of the hook.
3. Never use a hook’s yield point as an indicator
of its capacity.
4. Do not use a hook to lift personnel.
5. Know the rated load of the hook in use.
6. Never weld attachments to a finished hook in
field applications. This will alter and destroy
the design properties of the hook material.
7. Keep fingers, hands, body, and loose clothing
from between the hook and the load.
8. Avoid shock loading.
9. Inspect the hook regularly for excessive wear
and maintain it in safe operating condition.
Manual Operation
If the remote control malfunctions, follow
these steps to operate the crane manually:
1. Activate Flow Control. Turn the override
screw on flow control counter-clockwise. Full
adjustment is between three and five turns.
2. Operate Solenoids. Slide the knurled sleeve
out and then push or pull to operate, as shown
below. Be sure the sleeve is in the center,
locked, position before returning to remote
operation.
3. Deactivate flow control. Turn the override
screw clockwise until stopped. Full adjustment
is between 3 and 5 turns.
4. Have unit serviced immediately to restore
remote control functionality
.
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