Boom Disassembly - Manitowoc Grove TMS800E Service And Maintenance Manual

TMS800E SERVICE MANUAL
8. Block the lift cylinder.
9. Take up the slack on the boom lifting device.
10. Remove the capscrews, washers and end plate
securing the upper lift cylinder shaft to the boom base
section.
11. Remove upper lift cylinder shaft.
12. Remove clip pin and cross pin securing boom point pin
to base section.
DANGER
Shut down the crane before proceeding.
13. Remove boom pivot pin.
NOTE: The boom nose
approximately 63 kg (139 lb) each.
14. Raise the boom clear of the crane and lower to ground
and set cribbing to support the boom and prevent
tipping.

Boom Disassembly

1. Remove the boom in accordance with the REMOVAL
procedures outlined in this section.
2. If necessary, on the left side of the boom remove the two
bolts and washers securing the RCL cable angle
brackets to the base, tele 1 and tele 2.
NOTE: The boom weighs approximately 9570 kg (21098
lb). The above weight is for the boom without the
swingaway jib attached.
DANGER
The boom assembly must be rotated 180° (upside down)
before performing any assembly or disassembly
procedures.
DANGER
A rollover fixture with webbing is recommended to rotate
boom and sections. Chains are not recommended. If a
rollover fixture is not available, rotate sections using
adequate support with webbing.
GROVE
sheave shafts weigh
Published 01-29-2014, Control # 496-00
DANGER
A secure fixture that will prevent damage to the boom is
recommended to stabilize and hold the boom from moving
during removal of section or sections.
3. On the top front of the base section, remove the cotter
pins, shim, shaft and roller.
4. Repeat step 3 on tele 1.
5. Repeat step 3 on tele 2.
6. On the right side of the base section, remove the
capscrew, two nuts, and the trigger weld from the
brackets.
7. Remove the bolt, bolt insert and clamps securing the two
hydraulic tubes to the rear of the base section. Tag and
disconnect the two hydraulic tubes from the lower
telescope cylinder. Cap or plug all openings.
8. Remove the capscrews and washers securing the lower
telescope cylinder rod to the trunnion mounting plate at
the rear of the base section.
NOTE: The combined weight of the boom tele 1, tele 2,
and tele 3 sections, including the telescope
cylinders, is approximately 7231 kg (15942 lb).
9. Slide the assembly out of the base part way.
10. Remove the capscrews and washers and the two set
screws and hex nuts securing each front top wear pad to
base section. Remove bolts and washers securing each
adjusting plate to top of base section. Remove two
adjusting plates. Remove upper wear pad assembly. If
necessary, remove four capscrews securing front upper
wear pad to pad plate.
11. Remove the capscrews and washers securing the
bottom and side wear pad keeper plates to the bottom of
the base section. Remove the keeper plates.
12. Lift up on the front of tele 1 and remove the bottom and
side wear pads and shims from the base section, noting
quantity, size, and location of shims and pads.
13. Continue to pull the assembly from the base section
removing the top rear wear pads from tele 1 as they
clear the base section. Support remaining assembly on
cribbing.
14. Remove the capscrews securing the rear side wear
pads to tele 1. Remove the wear pads and shims, noting
quantity and size of shims.
15. Remove the mounting plates from the lugs on the lower
cylinder rod.
BOOM
4
4-3