Tennant 235D, User Manual

Page: 46 / 203

MAINTENANCE
235 MM331 (3--93)
3-10
8. Replace the engine coil wire.
9. Start the engine and operate it at an idle for
two minutes.
10. Press the directional pedal one-half of its
travel in the “forward”direction while also
operating the main brush and side brush for
one minute.
11. Adjust the directional pedal as described in
TO ADJUST DIRECTIONAL PEDAL
LINKAGE .
12. Stop the engine.
13. Raise the rear of the machine, remove the
jack stands, and lower the machine.
14. Fill the hydraulic fluid reservoir with new,
approved hydraulic fluid.
15. Check the hose routings to be sure the
hoses do not contact any moving, hot, or
sharp surfaces.
16. Replace the hydraulic fluid filter after the first
hour of operation.
DIRECTIONAL PEDAL
The directional pedal controls the flow of hydraulic
fluid to the hydraulic drive motor. The pedal has
three positions -- ”forward,”“neutral,”and
“reverse.”The “forward”and “reverse”positions
send hydraulic fluid to the drive motor to propel
the machine.
The “neutral”position is the position in which the
propelling pump sends no hydraulic fluid to the
propelling motor. The machine should not creep
when the “neutral”position is correctly adjusted.
Adjust the pedal linkages, as described in
TO ADJUST DIRECTIONAL PEDAL LINKAGE ,
whenever the machine creeps or after replacing
the hydraulic propelling pump or pump linkages.
The pedal linkages should also be adjusted
whenever the reverse speed is excessive or
inadequate.
TO ADJUST DIRECTIONAL PEDAL LINKAGE
1. Stop the engine and set the machine
parking brake.
FOR SAFETY: Before Leaving Or Servicing
Machine; Stop On Level Surface, Set Parking
Brake, Turn Off Machine And Remove Key.
2. Block the machine tires and jack up the rear
of the machine at the designated location.
FOR SAFETY: When Servicing Machine, Block
Machine Tires Before Jacking Machine Up.
3. Block up the machine with jack stands in the
designated locations. Make sure the rear tire
clears the floor by 2 in (50 mm) and all
obstacles within a 24 in (610 mm) radius.
FOR SAFETY: When Servicing Machine, Jack
Machine Up At Designated Locations Only.
Block Machine Up With Jack Stands.
4. Loosen the two centering bolts jam nuts.
A
C
B
03505
CENTERING BOLTS
A. Adjustment Bolts
B. Pintle Arm
C. Centering Stop