TM 5-3810-293-14&P-1
SECTION II
CONTROLS AND OPERATION
3. Raise the outrigger by placing the desired VERTICAL
CAUTION
switch in the UP position. Repeat the procedure for the
Be sure to pay out line from the main
other three outrigger before they are retracted.
and/or auxiliary winch, as required, to
4. Retract each outrigger by placing the appropriate
prevent the hook block(s) from
HORIZONTAL switch in the IN position. Be sure the lug
coming in contact with the boom
on each outrigger float engages the outrigger beam (see
point.
Figure 25).
Push both levers forward to extend all the telescoping
5. Remove the retainer pin, and move the lock pin to the
sections of the boom. Pull both levers back to retract all
locked position. Install the retainer pin to maintain the
the telescoping sections of the boom.
lock pin in the locked position.
CAUTION
6. Place the MASTER switch in the OFF position.
Extend all boom sections equally. If
7. Push the Outrigger/Steering Selector Valve in and
all the sections are not extended
engage the latch to divert hydraulic fluid to the steering
equally, operate the control levers
system. This step is not required on machines equipped
individually as required to equalize
with the optional carrier remote control system. The
the boom sections.
transfer from outrigger to steering is accomplished
4. AUXILIARY WINCH LEVER. This lever controls the
automatically when the MASTER switch is placed in the
operation of the optional auxiliary winch. When the
OFF position.
machine is equipped with a P&H winch, this lever is also
used to operate the free-fall feature of the winch. All
UPPER CONTROL IDENTIFICATION
P&H winches have free-fall capability.
Not all Gearmatic winches have free-fall capability.
The instruments and controls in the upper cab are shown
Gearmatic winches which have the free-fall feature will
in Figure 27. The numbers on this illustration correspond
always be equipped with a separate free-fall lever
to the numbers in the following list, which identifies the
attached to the winch lever.
controls and describes their function.
WARNING
CAUTION
Be sure you know whether or not you
Holding a control lever in either
have a free-fall winch, the make of
engaged position after a cylinder has
winch (P&H or Gearmatic). and that
reached its maximum stroke in the
you fully understand the operation of
corresponding direction will force
the free-fall feature, which is
hydraulic fluid through the relief
described below, before lifting or
valve at maximum speed and
lowering a load.
pressure, and will cause overheating
The auxiliary winch lever will function as follows when the
of the hydraulic fluid.
machine is equipped with a P&H winch.
1. SIGNAL HORN BUTTON. Depress the button on the
CAUTION
top of the swing lever to sound the upper signal horn.
Maintain ample tension on the winch
2. SWING LEVER. Push this lever forward to swing the
line when lowering light loads to
upper to the left (toward the boom). Pull this lever back
prevent the cable on the winch drum
to swing the upper to the right.
from loosening. If the layers of cable
3. BOOM TELESCOPE LEVERS. Two levers are used
are loose, damage to the cable can
to extend and retract the boom sections. Each lever
occur, resulting in possible damage
controls one telescoping section of the boom, and each
to the machine or injury to personnel.
is identified below:
Pull back on the winch lever to lift a load with the
auxiliary winch. Push the lever forward, part way, t6
Lever A controls boom section No. 2.
power down the load (see Figure 28). Push the lever
forward, to the extreme forward position, to free-fall the
Lever B controls boom section No. 1.
load.
1-2-8
