Test The Platform Self-Leveling - Genie S-40 Service Manual

Section 3 • Scheduled Maintenance Procedures
CHECKLIST B PROCEDURES
B-10
Check the Oscillate Directional
Valve Linkage
Genie specifications require that this procedure be
performed every 250 hours or quarterly, whichever
comes first.
Note: Perform this test only on models equipped
with an oscillating axle.
Proper axle oscillation is essential to safe machine
operation. If the oscillate directional valve linkage is
not operating correctly, the stability of the machine
is compromised and it may tip over.
1 Remove the drive chassis cover and the axle
covers from the non-steer end of the drive
chassis.
2 Locate the oscillate directional valve inside of
the non-steer axle and inspect the linkage for
the following:
• Lock nut is tight against yoke
• Yoke clevis pins are installed
• Cotter pins are installed through clevis pins
• Linkage is properly attached to
directional valve
3 - 24
B-11

Test the Platform Self-leveling

Genie specifications require that this procedure be
performed every 250 hours or quarterly, whichever
comes first.
Automatic platform self-leveling throughout
the full cycle of boom raising and lowering is
essential for safe machine operation. The
platform is maintained at level by the platform
leveling slave cylinder which operates in a closed
loop hydraulic circuit with the master cylinder
located at the base of the boom.
A platform self-leveling failure creates an unsafe
working condition for platform and ground
personnel.
1 Start the engine from the ground controls and
2 Hold the function enable toggle switch to either
3 Raise and lower the primary boom through
S-40 • S-45 • S-40 TRAX • S-45 TRAX
lower the boom into the stowed position.
side and adjust the platform to a level position
using the platform level toggle switch.
a full cycle.
Result: The platform should remain level at
all times to within ±5 degrees.
October 2014
Part No. 826364