BOOM MAINTENANCE 1300A
4-4 01-22-2019 Control # 051-08
BOOM REMOVAL FROM TRUCK
The boom and hoist are remove from the truck as one
assembly.
1. Extend and set the outriggers. The boom must be
completely retracted and stowed in the boom rest.
2. If equipped, remove swing around jib according to
“Section 4, Setup” of the Operator Manual.
3. Remove the hook block or downhaul weight, wind up the
rope on hoist drum, and stow the wedge socket on the
pegs provided on 1
st
section (Figure 4-4). Shut down the
truck engine.
4. Attach a lifting device to the rod end of the lift cylinder
and remove the boom lift cylinder pin keeper and pin
from bottom of the 1
st
section boom (Figure 4-5).
5. Lower lift cylinder to a suitable support.
6. Tag and disconnect the hydraulic lines from the hoist
and telescope cylinder. Cap all lines and ports.
7. Attach a lifting device at the boom CG and raise the
boom until the weight is removed from the boom pivot
pin. Remove boom pivot pin keeper and pin (Figure 4-5)
and lift boom off the turret.
LIFT CYLINDER REMOVAL
1. Tag and disconnect the hydraulic lines attached to the lift
cylinder.
2. Attach a lifting device to the lift cylinder.
3. Remove the lift cylinder pivot pin at the turret.
4. Lift the cylinder off the truck.
Boom Length Boom Weight*
1369 7220 lb (3275 kg)
13100 8,740 lb (3964 kg)
1369 7,220 lb (3275 kg)
* Includes single hoist
DANGER
Do not, under any circumstances, work at an elevated
height without using proper fall protection as required by
local, state or federal regulations.
Proportioning Cable
Attach Point at Rear
of 2
nd
Section
Proportioning cable Sheave
at Front of 2
nd
Section.
FIGURE 4-3
FIGURE 4-4
Wedge Socket
Stow Peg
DANGER
Ensure the lifting device is capable of supporting the
boom assembly.
FIGURE 4-5
Lift Cylinder
Pivot Pin Boom
Boom Pivot
Pin
Lift Cylinder
Pivot Pin Turret
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