Machine Will Not Drive At Full Speed - Genie S-65 Service Manual

Service Manual - Second Edition
800-610-4101
ActionRental.com
Machine Will
Not Drive At
Full Speed
Be sure all other
functions operate
normally.
Be sure the machine is
not raised above or
extended beyond the
drive limit switches.
Be sure the boom drive
limit switch is clear of
any debris and is not
activated when the
boom is in the stowed
position.
Be sure that the boom
extend drive limit switch
arm is being held down
when the boom is
retracted.
Be sure the wiring to
limit switches is intact
and show no sign of
damage or corrosion.
Be sure the free-wheel
valve is closed on the
drive pump.
Be sure the drive speed
select switch is on high
range (machine on level
surface symbol).
Part No. 48412
With the boom in the
continuity
stowed position, check
continuity from TB40 to
ground.
no continuity
With the boom in the
stowed position, check
terminal #6 on continuity
horsepower limiter
board for continuity to
ground.
no continuity
Re-adjust or replace
horsepower limiter
board OR check for
misalignment of limit
switches (LS1 and LS2)
OR consult Genie
Industries Service
Department.
Genie S-60 & Genie S-65
Section 5 - Troubleshooting Flow Charts
Check for correct wiring
of limit switches
(LS1 and LS2) OR
repair or replace boom
lift drive limit switch or
boom extend limit
switch.
Repair short to ground
in orange wire shorted
to ground from TB40 to
TP40 to terminal #6 on
horsepower limiter
circuit board.
Chart 33
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