BOOM RT880E SERVICE MANUAL
4-12 Published 11-10-2014, Control # 524-00
13. Install the wear pads in the upper telescope cylinder
support with the capscrews. Torque capscrews; refer to
Fasteners and Torque Values, page 1-15 for proper
torque value.
14. Position the cylinder support on lower telescope cylinder
and secure with the capscrews and washers. Torque
capscrews; refer to Fasteners and Torque Values,
page 1-15 for proper torque value.
15. Using an adequate lifting device, position the upper tele-
scope cylinder onto the lower telescope cylinder.
16. Position the sheave end of the telescope cylinder
assembly at the rear of the fly section.
17. Lay the retract cable sheave mounts out behind the fly
section as they will be installed in the outer mid. Route
the lug end of the retract cables through the sheave
mounts (top to bottom) so the lug end will come off the
bottom of the sheave. Place the retract sheave, with one
thrust washer on each side, in the mount.
18. Install the lug end of each retract cable to the telescope
pin cylinder mount and secure with the washer and cot-
ter pin.
19. Install the adjusting bolts through the holes in the lower
mount shaft.
20. Install the sled assembly onto the adjusting bolts and
install both swivel nuts and regular nuts, making sure
that the extension cables are not crossed and twisted.
21. Slide telescope cylinder assembly into the rear of the fly
section until sheave mount clears the fly end plates at
the rear of the fly section. Lowering the rear of the fly and
raising the rod end of the cylinders will aid in sliding
these together.
22. Place the extend cable lug ends in the slots at the top of
the fly section and secure them with the keeper plate
and two capscrews and washers. Torque capscrews;
refer to Fasteners and Torque Values, page 1-15 for
proper torque value.
23. Install a wear pad on the two upper telescope cylinder
wear pad holders.
24. Position the wear pad holders on each side of the upper
telescope cylinder support foot and secure each with
two bolts and hardened washers.
25. Slide the telescope cylinder assembly all the way in.
Place blocking under the rear of the telescope cylinders
to aid in assembly.
26. Place the mounting plates on the upper telescope cylin-
der barrel mounting lugs.
27. Using tape or ty-wraps, fasten the extend cable ends to
the telescope cylinder to aid in assembly.
28. Place the retract cable sheave mounts in the rear of the
fly section to aid in assembly.
29. At the rear of the outer mid section, install the upper
wear pad grease line, connector and grease fitting on
each side.
30. Install the bottom rear wear pad on the outer mid section
with the capscrews and washers. Torque capscrews;
refer to Fasteners and Torque Values, page 1-15 for
proper torque value.
31. Position the front end of the outer mid at the rear of the
fly/telescope cylinder assembly.
32. Slide the fly/telescope cylinder assembly into the outer
mid section installing top rear wear pads in pockets of fly
section. Stop and install rear side wear pads and shims
on fly section with capscrews. Torque capscrews; refer
to Fasteners and Torque Values, page 1-15 for proper
torque value.
NOTE: Use shims as necessary to adjust wear pad so it is
within 0.078 in (2 mm) of the outer mid section side
plate. Use equal number of shims on each side.
33. Continue to slide together being careful not to damage
cables.
34. Lift up on the front of the fly and install the bottom and
side front wear pads in the outer mid. Install shims as
necessary.
35. Install outer mid front top wear pads as noted during dis-
assembly. Secure each with a bolt and washer. Install
two adjusting blocks and secure each with two bolts and
washers. Install adjusting screws and lock nuts. (Two
each on top and two each on side).
36. Install bottom and side wear pad keeper plate on each
side of the outer mid and secure with the capscrews.
T
orque capscrews; refer to Fasteners and Torque Val-
ues, page 1-15 for proper torque value.
37. Continue to completely slide together.
38. Lift up on end of the upper cylinder to align barrel trun-
nion mounting plate holes with holes in outer mid.
Secure each with four capscrews and washers. Torque
capscrews; refer to Fasteners and Torque Values,
page 1-15 for proper torque value.
39. Remove any blocking under cylinder.
DANGER
Ensure the telescope cylinders are securely blocked and
some means used to hold them together to prevent any
accidental movement. Severe injury can occur if the
cylinders drop.
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