Initial Set-Up
Hydrostatic Pump Adjustment
3
3-6
WZ1000 6/5/23
Initial Set-Up
3.9 Hydrostatic Pump Adjustment
WARNING!
Use jack stands when adjusting the hydrostatic pumps.
Keep everyone clear of all controls while adjusting the hydrostatic pumps.
Occasional adjustments to the hydrostatic pumps my be necessary to
keep the drive wheels from creeping:
1.
Lift the rear of the drive unit until the drive tires clear the ground.
2.
Be sure steering control levers are locked in neutral position.
3.
Start the drive unit, and set the speed full throttle.
If either drive tire rotates, adjust the hydrostatic pump link arm for that
tire.
a.
Loosen the jam nut from the hydrostatic pump link arm.
b.
Slowly turn the link arm, watching the tire as it turns.
c.
If the tire begins turning faster, turn the link arm in the
opposite direction until it slows, and eventually stops.
d.
Tighten the jam nut to lock the link arm into this position.
4.
Turn off the drive unit.
5.
Ensure that both link arm jam nuts are tight.
6.
Remove the unit from the jack stands.
3.10 Hydrostatic Pump Belt
WARNING!
Do not inspect, adjust, or change the hydrostatic pump belt while the engine is running.
The hydrostatic pump drive belt is located at the front of the engine, between the
radiator and the engine block. The idler should tension the belt properly so that
additional adjustments are not necessary.
1.
Check the belt for excessive wear, damage, cracks, weathering, or other
unsuitable or unsafe operating conditions; replace the belt, if necessary.
NOTICE
USE ONLY THE LASTEC BELTS AS REPLACEMENTS!
Lastec belts are specially designed for this mower. Similar belts may not
meet the all the demands, leading to premature wear and reduced perfor
-
mance.
Ensure that the idler tensioning spring is properly installed and in good condition. If
this spring becomes loose, detached, or fatigued, the idler will not properly tension
the belt.
3.11 Mower Deck Drive Belt
WARNING!
Do not inspect, adjust, or change the deck drive belt while the
engine is running.
Clean the entire deck area (under the operator seat pan) of all grease, oil, fuel, grass, or debris to prevent fire and pro
-
jectile hazards.
TDWZ1-09
Jam nut
Link arm
TDWZ1-11
