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Groundsmaster 5900/5910 Page 7 -- 19 Chassis
IMPORTANT: A properly installed and calibrated
traction pedal potentiometer is critical to accurate
traction system response and for reliable poten-
tiometer life. Use care when removing, installing
and calibrating the traction pedal potentiometer.
Disassembly (Fig. 16)
1. Park machine on a level surface, lower cutting
decks, stop engine, apply parking brake and remove
key from the ignition switch.
2. Disconnect machine wire harness connector from
potentiometer (item 18) on traction pedal.
3. Ifthetraction pedal is to beremovedfrom the traction
pedalshaft,usea marker or paint pen onpedalandshaft
to identify location of pedal for assembly purposes.
4. DisassembletractionpedalasneededusingFigures
16 and 17 as guides. When removing roll pins (items 6,
7 and 22), make sure to support shaftto prevent compo-
nent damage.
Assembly (Fig. 16)
1. Assemble traction pedal using Figures 16 and 17 as
guides noting the following items:
A. Apply antiseize lubricant to spring shaft (item 23)
between hex head and roll pin hole.
B. The bracket of the traction pedal hub (item 31)
should be closer to thetraction pedal thanthe slotted
roll pin (Fig. 17).
C. Use a press to install slotted roll pin (item 6) and
roll pin (item 7). DO NOT distort roll pins during as-
sembly.
D. Make sure that roll pin (item 7) is fully inside the
groove of the shimplate (item 20). The rollpinshould
not contact the shim plate throughout the operating
range.
E. To install the traction pedal potentiometer (item
18), press and hold the traction pedal in the reverse
direction slightly. Align the slot on the end of the ped-
al shaft with the slot in the potentiometer. Slide po-
tentiometer onto screws and release pedal. Hold
potentiometer in position while installing capture
plate (item 17) and lock nuts (item 16).
F. Torque lock nuts (item 16) from 13 to 17 in--lb
(1.5 to 1.9 N--m).
G. Leave the hex nut (item 24) loose so that the po-
tentiometer can be calibrated. Also, do not install
spring cover (item 15) and traction pedal cover (item
26) until after calibration of potentiometer.
2. Plug machine wire harness connector into traction
pedal potentiometer (item 18).
3. After assembly of the traction pedal, calibrate the
traction pedal potentiometer using the Info Center Dis-
play (see Traction Pedal Calibration in the Adjustments
section of Chapter 5 -- Electrical System).
4. Makesure that hex nut (item24)istightenedafterpo-
tentiometer adjustment.
5. Installspring cover (item 15) and traction pedalcover
(item 26).
1. Traction pedal
2. Pedal potentiometer
3. Traction pedal hub
4. Pedal hub bracket
5. Slotted roll pin
Figure 17
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Chassis