Smithco 20-700-A, Parts & Service

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7
Ser
vice
ADJUSTMENTS
WHEEL CREEP
"Creep" is when the engine is running and hydrostatic transmission is in neutral, but due to inadequate align-
ment, wheels still move. Do the following procedure to stop this
motion.
1. Lift up and support machine so rear wheels are off the ground
and can turn freely.
2. In the engine compartment, the hydrostatic transmission is on
the left side. The shift arm (D) is under the pump and comes
out the side. The idler arm (B) has a bearing that runs in the
notch of the shift arm. Loosen bolt (A).
3. With engine running, move bearing (B) so it centers on the
shift arm (D) and 'wheel creep' stops.
4. Tighten all fasteners and test by using foot pedal linkage to
see that 'creep' is removed.
5. Turn engine off and lower machine.
SPRAY PUMP WITH BELT
Located to the right of the engine. The belt should have approximately
1
/
2
" (13mm) of deflection in the center
of the top strand. Loosen and tighten the
3
/
8
-16 x 1
1
/
4
bolts located on the foot of the pump mount.
MASTER BOOM SWITCH (FOOT SWITCH)
The master boom switch, located on the left floorboard is used to override the master switch on the computer
console of the spray systems. By pushing down it will turn on/off the booms. For the TeeJet System the Mas-
ter Switch on the computer
must be on
for the master boom control switch to work.
GROUND SPEED CONTROL (FOOT SWITCH)
The ground speed control does not work the same as an automotive type cruise. The ground speed control is
located on the center floorboard and is used to lock forward speed.
TO ENGAGE:
1. Flip rocker switch ‘On’ (green light).
2. Obtain desired speed with foot pedal.
3. Step on foot switch to lock speed.
4. Push foot switch again to disengage.
SPRAY BOSS CONTROL - ORANGE
Engages and disengages speed boss. Forward is engage and all the way back is disengage. When the lever
is engaged it sets a stop for the accelerator. The accelerator pedal must be used to maintain this speed. To
adjust speed use the knob on the end of the lever, counter clockwise increases speed and clockwise decreas-
es speed. Disengage the lever and you will have full accelerator pedal range.
TANK AGITATION
The valve to turn on and off the tank agitation is located on the front of the
seat panel, drivers right hand side. Rotate valve handle down to shut off
and rotate back up to turn on..