Monthly Maintenance Work - Manitowoc Grove TMS800E Service And Maintenance Manual

BOOM
NOTE: The information
malfunctions during operation with the 10/17 m (33/
56 ft) lattice extension.
Table 4-2
Malfunction
No function of the lifting limit switch
The main boom cannot be telescoped
with the rigged lattice extension or jib.
The lattice extension can not be
derricked.

MONTHLY MAINTENANCE WORK

Pins
Lubricate all attach, securing and retaining pins, in other
words:
- the pins for the pin connection on the lattice
extension,
- the retaining pins on the return pulleys,
4-50
in Table 4-2 applies
Lifting limit switch not connected
Electrical connection between the
boom head and lattice extension and
between 10 m (33 ft) section and 7 m
(23 ft) section is not established.
Lifting limit switch on the main boom
head not overridden.
When operating with a 17 m (56 ft)
lattice extension or jib, the short-circuit
plug is not inserted on the head of the
10 m (33 ft) section.
The main boom is derricked to such an
angle at which telescoping is not
permissible
Derricking gear of the lattice extension
is switched off.
Published 01-29-2014, Control # 496-00
to
Cause
- the retaining pins used for fastening the lattice
extension sections for transport,
- the spring latch on the run-up rail.
NOTE: The maintenance interval applies to average
operation. Also, lubricate the pins after high-
pressure cleaning and generally at an interval that
will prevent them getting dry.
TMS800E SERVICE MANUAL
Remedy
Connect the lifting limit switch.
Establish electrical connection.
Override the lifting limit switch on the
main boom head.
Insert short-circuit plug.
Derrick the main boom to the required
angle.
Switch on the derricking gear of the
lattice extension.