2-13
heavy loads. The control should be slightly actu-
ated to begin movement and then slowly in-
creased to desired operating speed. The results
obtained from metering the oil flow with the con-
trol lever can also be aided by carefully coordi-
nating the throttle control.
4. Lower loadline and attach load.
5. Control load by use of a non-conductive tag line.
6. Do not leave crane unattended with the boom
elevated in operating position. Always secure the
boom in the boom rest before leaving the work
area.
+"2"
1. Completely retract boom and place securely in
boom rest.
2. Secure loadline block so that it cannot swing
freely.
3. Anti-Two Block (ATB) Switch to prevent damage
to the A
TB switch, consider the following (See
page 14):
With loadline hook stowed properly,
verify downhaul weight is resting
against the terminator wedge socket
bracket. Slack in the chain
assembly must be present in order
for weight to be removed from ATB s
witch.
Utilize entire length of chain. The
quick link provided, attaching the
downhaul weight assembly to the
ATB switch, must be installed in the
last link of the assembly opposite the
downhaul weight.
DO NOT SHORTEN CHAIN AT ANYTIME.
If slack in the chain assembly is still
not present, add straps between an
chor point and hook block to achieve
weight removal from the ATB switch.
4. Retract all outriggers/stabilizers. Optional front
stabilizer should always be retracted first, before
main outriggers are retracted.
5.
Secure any loads or lifting devices on truck bed
or body.
6. Disengage Power Take Off (PTO).
7. Release park brake before moving truck.
8. When traveling on the road, check all under-
passes to be sure there is sufficient clearance
for the unit.
2+
The “Burst of Speed” will increase winch line speed
60% over normal operation by diverting oil from the multi-
bank control valve to the winch valve.
The “BOS” is engaged by operating the winch con-
trol valve lever while pulling up on the BOS handle be-
low the winch knob. The “BOS” feature should only be
operated in a temporary manner to reduce oil heat build
up, prevent truck PTO overloading, and provide inde-
pendent operation of the crane and winch (normal winch
speed will not decrease when crane functions are used).
If the “BOS” feature is run continuously or with an over-
load, damage to the crane or truck could occur. To start
the “BOS” smoothly, first pull up on the BOS handle then
operate the winch lever. To stop the “BOS” smoothly,
return the winch lever to its neutral position then release
$*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 - 206 FPM
(62mpm), fourth layer - 225 FPM (68 mpm)
WINCH
BOS
WINCH
CONTROL
Reference Only
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