Genie GS-2668 RT, Service Manual

Page: 48 / 184

Section 3 • Scheduled Maintenance Procedures
REV B
November 2008
3 - 22 GS-2668 RT • GS-3268 RT Part No. 112657
CHECKLIST B PROCEDURES
B-11
Test the Drive Speed -
Raised Position
Genie requires that this procedure be performed
every 250 hours or quarterly, whichever comes
first.
Proper drive function movement is essential to
safe machine operation. The drive function should
respond quickly and smoothly to operator control.
Drive performance should also be free of
hesitation, jerking and unusual noise over the
entire proportionally controlled speed range.
1 Create start and finish lines by marking two
lines on the ground 40 feet / 12.2 m apart.
2 Start the engine from the platform controls.
3 Raise the platform to approximately
6 feet / 2 m.
4 Choose a point on the machine; i.e., contact
patch of a tire, as a visual reference for use
when crossing the start and finish lines.
5 Bring the machine to maximum drive speed
before reaching the start line. Begin timing
when your reference point on the machine
crosses the start line.
6 Continue at maximum speed and note the time
when your reference point on the machine
crosses the finish line. Refer to Section 2,
Specifications.
Note: If the raised drive speed does not meet
specifications, refer to the Repair procedure 7-2,
Function Speed Tuning.
B-12
Inspect the Fuel and Hydraulic
Tank Cap Venting Systems
Genie requires that this procedure be performed
every 250 hours or quarterly, whichever comes
first. Perform this procedure more often if dusty
conditions exist.
Free-breathing fuel and hydraulic tank caps are
essential for good machine performance and
service life. A dirty or clogged tank cap may cause
the machine to perform poorly and continued use
may cause component damage. Extremely dirty
conditions may require that the caps be inspected
more often.
Explosion and fire hazard. Engine
fuels are combustible. Perform this
procedure in an open, well-
ventilated area away from heaters,
sparks, flames and lighted
tobacco. Always have an
approved fire extinguisher within
easy reach.
1 Remove the cap from the fuel tank.
2 Check for proper venting.
Result: Air passes through the fuel tank cap.
Proceed to step 4.
Result: If air does not pass through the cap,
clean or replace the cap. Proceed to step 3.
Note: When checking for positive tank cap venting,
air should pass freely through the cap.