TM 5-3810-307-24-1-1
5.
Remove the bolt, washer, and plate securing
17. Remove the bolt, washer, and plate securing
the telescope cylinder retaining pin and remove the
the retraction cable retainer pin to the fly section.
pin.
Remove the retainer pin and the retraction cable.
6.
Remove the nuts, jam nuts, and washers
18. Withdraw the telescope cylinder from the fly
securing the extension cables to the base section.
section.
7.
Remove the nut, jam nut, and washer securing
19. If the telescope cylinder is to be replaced,
the retraction cable to the front of the base section.
remove the foot plate, sheave mounting assembly,
and sheaves from the telescope cylinder.
8.
Back off the setscrews on the adjustable wear
20. Refer
to
BOOM
EXTENSION
AND
pads to provide additional clearance and withdraw the
RETRACTION CABLE MAINTENANCE in this
mid and fly sections from the base section.
section for cable inspection.
9.
Remove the adjustable wear pads from the
inside of the base section.
ASSEMBLY.
10. Remove the lower wear pad from the outside of
1.
If removed, install the foot plate, sheave
the mid section and the upper wear pads and spring
mounting assembly, and sheaves from the telescope
assembly from the upper rear of the mid section.
cylinder. Torque the bolts to 250 lbs-ft (338.9 Nm).
11. Remove the bolts, washers, mounting plate,
2.
Route the extension cables through the cover
and retaining pin securing the retraction sheave to
assembly, around the telescope cylinder sheaves,
the mid section and remove the retraction sheave.
and through the foot plate. To aid in assembly,
secure the cables to the cylinder by wrapping tape
CAUTION
around the cylinder in several places.
Do not let the telescope cylinder fall.
3.
Position the telescope cylinder into the fly
section. Place blocking under the rear of the
12. Place blocking beneath the telescope cylinder
telescope cylinder to aid in assembly. Install the
in the fly section. Remove the bolts and washers
mounting plates on the telescope cylinder.
securing the telescope cylinder barrel to the mid
section.
4.
Secure the cover assembly to the fly section
with the bolts and washers. Torque the bolts to 31
CAUTION
lbs-ft (42.0 Nm).
Use care when removing the fly section
5.
Install the retraction cable and retaining pin
from the mid section. The telescope
and secure the pin with the bolt, washer, and plate.
cylinder is not firmly attached and can
slide.
6.
Install the lower wear pads and upper wear
pads and spring assembly onto the fly section.
13. Back off the setscrews on the adjustable wear
pads to provide additional clearance and withdraw
7.
Install the adjustable wear pads into the mid
the fly section and telescope cylinder from the mid
section.
section.
CAUTION
14. Remove the adjustable wear pads from the
Use care when installing the fly section
mid section.
into the mid section. The telescope cyl-
15. Remove the lower wear pads from the outside
inder is not firmly attached and can slide.
of the fly section and the upper wear pads and spring
assembly from the upper rear of the fly section.
8.
Install the fly section and telescope cylinder
into the mid section.
16. Remove the bolts securing the cover assembly
to the fly section. Remove the extension cables.
2-10-8
