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Page M-5
Repair and Service Manual
B
B
ELECTRONIC SPEED CONTROL
Read all of Section B and this section before attempting any procedure. Pay particular attention to Notices, Cautions, Warnings and Dangers.
GOVERNOR COMPRESSION SPRING
ADJUSTMENT
Tool List
Qty.
Wire cutter................................................................... 1
Pliers ........................................................................... 1
Wrench, 3/8” ............................................................... 1
Wrench, 9/16” ............................................................. 1
Tampering with or adjusting the speed control
system to go beyond factory specified speed
will void the warranty, is dangerous, could
cause a loss of vehicle control and possible
injury or death.
If the governor requires service, the service must be
performed by an authorized service branch or distributor
who will reseal the governor after calibration.
Hold the governor compression spring adjuster rod
when turning the governor adjuster (21). Failure to hold
the rod will cause the accelerator cable to twist which
may cause premature failure.
Cut and remove safety seal (23). Hold governor adjuster
(21) and loosen the jam nut (19) (Ref Fig. 4 on page M-
4).
Pre-adjust governor compression spring (20) by holding
governor rod and rotating governor adjuster until a
dimension of 1 3/4” (44 mm) is achieved between the
inside of the cup washers (22). This dimension is a start-
ing point and may be further adjusted after a road test.
Tighten the jam nut (19) and perform road test. See
'Road Test' on page M-5.
Road Test
Install the negative (-) battery cable.
Test drive the vehicle and confirm that the compression
spring adjustment results in the maximum governed
speed specified in the GENERAL SPECIFICATIONS
section. Determine speed by measuring the time it takes
to travel a known set distance with vehicle at maximum
speed. Enter time and distance into this formula to cal-
culate speed:
Rate (in MPH) = (Distance in feet / 5280) / (Time in
seconds / 3600)
or
Rate (in KPH) = (Distance in meters / 1000) / (Time in
seconds / 3600)
.
For example: (300 ft. / 5280) / (13.6 sec. / 3600) = 15
MPH
or
(100 m / 1000) / (15 sec. / 3600) = 24 KPH.
If the speed is not within the specified speed range, stop
the vehicle and adjust the governor compression spring
as described in procedure above.
Repeat the test and adjustment until the factory recom-
mended governed speed is achieved. Tightening the
spring results in a speed increase while loosening it will
result in a speed decrease.
Summary of Contents for 625619 2012
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