Ariens 929001 - Manual (Page 15)

PTO DRIVE OVERCENTER ASSEMBLY
If after adjustment, the rear nuts B, Figure 31, contact the
pivot block when the clutch is engaged, loosen bolt F, Fig­
ure 32, and move the idler closer to the belt to provide ad­
ditional adjustment, Repeat the complete adjustment se­
quence if it becomes necessary to move the idler.
HYDROSTATIC TRANSMISSION DRIVE BELT
(HYDROSTATIC MODEL ONLY)
The hydrostatic drive belt does not require tightening.
Belt tension is achieved by a spring-loaded idler. Replace the
belt if it has stretched or worn to the point where it begins to
slip.
HYDROSTATIC NEUTRALIZER PEDAL ADJUSTMENT
(HYDROSTATIC MODEL ONLY)
The linkage should be adjusted to automatically return the
hydrostatic control lever to the "park-start" (neutral) position
when the neutralizer pedal is depressed.
To adjust the neutralizer pedal, place control lever in the
"park-start" position, loosen bolt A, Figure 33, depress the
foot pedal and apply the brake lock, then retighten bolt A.
FRICTION BRAKE^
Figure 33
Release brake lock, move the control lever to a forward
position then depress the foot pedal. The control lever should
return to "park-start" (neutral). Repeat process by placing
control lever in reverse. When the adjustment is properly made,
the control lever will automatically return to neutral from
either forward or reverse when the neutralizer pedal is
depressed.
IMPORTANT: NEVER DEPRESS BRAKE PEDAL AND
MOVE THE HYDROSTATIC CONTROL SIMULTANEOUS-
L Y. THE LINKAGE IS INTERCONNECTED AND DAMAGE
OR MIS-ADJUSTED LINKAGE COULD RESULT.
HYDROSTATIC NEUTRAL ADJUSTMENT
(HYDROSTATIC MODEL ONLY)
The hydrostatic controls should be adjusted so the rear
tires stop rotating when the control lever is returned to
neutral either manually or with the neutralizer pedal.
Use the following procedure to adjust neutral:
1. Check HYDROSTATIC NEUTRALIZER PEDAL ADJUST­
MENT. If required, adjust as previously explained.
2. Check position of the timing mark on control cam. With
the shift lever in the "park-start" position and brake lock
engaged, the center line of bolt head B, Figure 33, should
be aligned with the timing mark on the cam. If the
timing mark does not align with the bolt head, loosen bolt
C and move the cam up or down as required to align the
bolt head with the timing mark. Tighten nut C securely
after making the adjustment.
3. Jack up rear of the tractor until rear tires are clear of the
ground.
4. Start engine and increase speed to full throttle.
5. Loosen bolt B slightly. Insert a screw driver through the
slots in the friction plate and the pintle lever. Figure 33.
Pivot the pintle lever left or right until the rear tires stop
rotating and retighten bolt B.
ik
WARNING: KEEP HANDS AND ANY LOOSE
CLOTHING AWAY FROM THE HYDROSTATIC
COOLING FAN AND DRIVE BELT WHEN MAK­
ING
ADJUSTMENT. THESE PARTS MUST RO­
TATE WHEN MAKING THE NEUTRAL ADJUST­
MENT.
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