Clean And Lubricate The Columns; Adjust The Sequencing Cables - Terex Genie GR -12 Service Manual

Section 3 • Scheduled Maintenance Procedures
CHECKLIST B PROCEDURES
B-5

Clean and Lubricate the Columns

Genie specifications require that this procedure be
performed every 250 hours or quarterly, whichever
comes first.
Clean and properly lubricated columns are
essential to good machine performance and safe
operation. Extremely dirty conditions may require
that the columns be cleaned and lubricated more
often.
1 Raise the platform to the maximum height.
2 Place a lifting strap from an overhead crane
under the platform. Support the platform. Do not
apply any lifting pressure.
Component damage hazard. The
platform railings can be damaged
if they are used to lift the platform.
Do not attach the lifting strap to
the platform railings.
3 Visually inspect the inner and outer channels of
the columns for debris or foreign material. If
necessary, use a mild cleaning solvent to clean
the columns.
Bodily injury hazard. This
procedure will require the use of
additional access equipment. Do
not place ladders or scaffold on or
against any part of the machine.
Performing this procedure without
the proper skills and tools could
result in death or serious injury.
Dealer service is strongly
recommended.
4 If needed, apply a generous amount of
Boe-lube wax to the inside and outside
channels of each column.
3 - 14
B-6

Adjust the Sequencing Cables

Genie specifications require that this procedure be
performed every 250 hours or quarterly, whichever
comes first.
Maintaining proper adjustment of the sequencing
cables is essential for safe machine operation. An
unsafe working condition exists if the sequencing
cables are improperly adjusted. A frequent check
allows the inspector to identify changes in the
sequencing cables operating condition that might
indicate damage.
1 Fully lower the platform.
2 Locate the compression spring on each
sequencing cable.
Note: The spring is located between the nylock nut
and the upper sequencing bracket.
a
b
c
d
GR • QSR • QSW
September 2009
a nylock nut
b spring
c upper sequencing bracket
d sequencing cable
Part No. 84700
REV D