Maintenance - Manitowoc Grove TMS700E Service And Maintenance Manual

HOIST AND COUNTERWEIGHT
attachment to the removal cylinders and lugs to pin it under
the hoist mounting. The two additional slabs pin to the
standard box and to each other. The counterweights can be
pinned to the carrier deck and are transferred between the
turntable and the carrier deck by two hydraulic removal
cylinders. The cylinders are controlled from a valve
assembly located under the hoist mounting. The valve
contains an inlet section, an outlet section with relief valve,
and two working sections (one for each cylinder). The valve
is controlled by switches on a control panel on each side.
For cranes without an auxiliary hoist, an additional 862 kg
(1900 lb) counterweight is bolted to the hoist mounting area
in lieu of the auxiliary hoist.

Maintenance

NOTE: For removal and installation of the counterweight,
refer to the Operator Manual.
Cylinders
Removal
1. Set the counterweight on the carrier deck. Refer to
procedures in the Operator Manual.
2. Tag and disconnect the hydraulic lines from the cylinder.
Cap or plug all openings.
5-14
NOTE:
3. Remove the four bolts and lockwashers securing the
cylinder to the mounting plate. Remove the cylinder and
spacer.
Installation
1. Position the cylinder and spacer on the mounting plate
and secure with four bolts and lockwashers. Tighten the
bolts; refer to Fasteners and Torque Values, page 1-12
for the torque value for the bolts.
2. Connect the hydraulic lines to the cylinder as marked
during removal.
Jack Sc
There are four jack screws with jam nuts under the mounting
structure and six on the slabs. With the counterweight
properly pinned to the mounting structure (turntable) adjust
the jackscrews to level the counterweight pieces to eliminate
any relative movement between each piece and the
mounting structure (turntable). Secure the adjustment with
the jam nuts.
Published 01-29-2015, Control # 512-01
TMS700E SERVICE MANUAL
The cylinder weighs approximately 42 kg (92 lb).
rews