Ariens 931000 User Manual download pdf (Page 13)

ADJUSTMENTS/ MAINTENANCE

HYDROSTATIC CONTROL ADJUSTMENT

f the tractor creeps when the Hydrostatic Control Lever is in the

"NEUTRAL” (N) position, see your Ariens dealer for adjust

ment.

CONTROL LEVER FRICTION ADJUSTMENT

The hydrostatic friction plates, shown in Figure 18, must be ad

justed so the Control Lever moves through the "FORWARD” and

"REVERSE" modes with a minimum of force. The friction plates

must remain parallel for proper adjustment. However, there must

be sufficient spring pressure on the friction plates so that under

normal operating conditions, the Hydrostatic Control Lever will

remain at any selected setting.

If the tractor has a tendency to slow down or speed up without

touching the Hydrostatic Control Lever, it wiil be necessary to in

crease the spring pressure on the friction plates by tightening

the screws at "A" and "B", Figure 18. Friction piates must re

main parallel. Check parallelism and adjust screws equally. Ac

cess to these screws can be gained by raising the rear deck of

the tractor and inserting a screw driver through the access holes

as shown.

If the tractor has a tendency to speed up, tighten screw "A”

slightly more than screw ■"B".

If the tractor has a tendency to slow down, tighten screw "B”

l^l^lightly more than screw "A”.

HYDROSTATIC

CONTROL

FORK

HYDROSTATIC CONTROL LEVER

FRICTION PLATES

CONTROL CONSOLE

REMOVED

FOR CLARITY

SCREW

DRIVER

FIGURE 18

PARK LOCK MAINTENANCE AND ADJUSTMENT

When the Hydrostatic Control Lever is placed in the

“PARK/START" position, the cable shown in Figure 19 is push

ed out the cable housing causing the pivot plate to rotate in the

direction of the arrow. This results in the park-lock pin engaging

,n a reduction gear in the differential housing which locks the

differential. When the Control Lever is moved forward, the pivot

plate rotates opposite to the direction of the arrow shown in

Figure 19, and the park-lock pin disengages from the reduction

gear thus unlocking the differential.

The park-lock mechanism should be kept clean of any dirt or

grass build-up and the moving parts should be oiled occasionally

to assure that the park-lock functions properly.

The park-lock mechanism Is properly adjusted when the over

center pivot plate. Figure 19 actuates at Point "C", Figure 20

(approximately 1/2 to 2/3 the length of the slot on the console

cover), as the Hydrostatic Control Lever is moved from the front

of the slot back into the "PARK/SLOT” position. A distinct

"click” can be heard when the over-center latch actuates.

When the mechanism is properiy adjusted, the park-lock pin will

engage the teeth of the reduction gear when the Hydrostatic Con

trol Lever reaches Point "B", Figure 20, and the pin will be

completely disengaged at Point "A".

Adjustment is made by loosening nuts "A”, Figure 19, and

moving the cable housing "IN" or "OUT” until the over-center

latch actuates when the Hydrostatic Control Lever reaches Point

C, Figure 20, as the lever is moved from the front of the slot,

rear-ward into the "PARK/START" position. Moving the cable

housing "IN” toward the tractor causes the park-lock pin to

engage later. Moving it "OUT'' away from the tractor causes the

pin to engage earlier in the reduction gear.

FAST

SLOW

PARK LOCK DISENGAGES j 5]

OVERCENTER LATCH

ACTUATES

PARK LOCK ENGAGES

PARK

START

FIGURE 20

- 13

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 51 52

Comments to this Manuals

No comments

Ariens 931000 User Manual Page 13

Comments to this Manuals

Related products and manuals for Gardening equipment Ariens 931000