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JACOBSEN G-PLEX III Series: FH & FJ
SAFETY AND OPERATORS MANUAL
10.7 MOW/TRANSPORT SPEED CONTROL
Speed is controlled by use of the direction/speed
control pedal as described in control pedals section.
ADJUSTING MOW SPEED
To determine mow speed, run a time check on how
fast the unit travels in a distance of 50’ (15.24 M).
Prepare a level surface with enough room to start
and end beyond the 50’ marks.
Place a stake in the ground where you want to
begin timing the unit. Measure and place another
stake at a distance of 50’ (15.24 M). Lower the
cutting heads and press the direction pedal forward
so the unit is travelling at full throttle (the cutting
heads should be in the neutral position when timing
the unit).
Begin timing the unit when the centre of the front
tire aligns with the first stake. Stop timing when the
centre of the front tire aligns with the stake placed at
50’ (15.24 M). Estimated time for 3.8 mph (6.1 Km/
hr) will be approximately 8.8 to 9.2 seconds. If there
is a significant difference in the times listed above,
you can adjust the mow speed as follows.
To Adjust Transport Speed Stop.
a. Loosen locknuts (3).
b. Adjust bolt (2).
c. Tighten locknuts (3).
To Adjust Mow Speed Stop.
a. Loosen locknuts (5).
b. Adjust screw (4).
c. Tighten locknuts (5).
1. Direction/Speed Pedal
2. Transport Stop
3. Locknuts
4. Mow Stop
5. Locknuts
10 ADJUSTMENT
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