Pto Belt Inspection; Pto Belt Tension Adjustment; Pto Belt Replacement; Service (Continued) - Ventrac 4500Y Operator's Manual

PTO Belt Inspection

Always set the parking brake, shut off power
unit engine, remove the ignition key, and ensure
all moving parts have come to a complete stop
before inspecting components or attempting any
repair or adjustment.
Inspecting the PTO belt (A) of this power unit can
prevent sudden belt failure by finding problems
before they cause the belt to break. Inspect the PTO
belt prior to operation, as part of the daily inspection
or anytime a problem is suspected. There may be a
PTO belt problem if there is a squealing or chatter-
ing sound, or the smell of a slipping belt.
1. Park the power unit on a level surface.
2. Engage the parking brake and shut off the engine.
3. Remove the key from the ignition switch.
4. Check the PTO belt (A) at the PTO idle pulley (B).
B
5. Typical wear on a drive belt may result in the
conditions shown in the diagram. If any of
these conditions occur, the drive belt will
require replacement.
SERVICE

PTO Belt Tension Adjustment

1. Park the power unit on a level surface.
2. Engage the parking brake and shut off the engine.
3. Remove the key from the ignition switch.
4. Pull out on the PTO belt tensioner rod to release
tension on the belt tensioner linkage.
5. Loosen the adjustment bolt (A) and rotate the
tension adjustment link (B) clockwise to increase
the tension applied to the PTO and attachment
belts. Rotate the tension adjustment link coun-
terclockwise to decrease the tension applied to
the PTO and attachment belts.
A
6. Tighten the adjustment bolt securely. Torque to
31 ft-lbs (42 Nm).

PTO Belt Replacement

1. Park the power unit on a level surface.
2. Engage the parking brake and shut off the engine.
3. Remove the key from the ignition switch and
allow the engine to cool.
4. Open the engine hood.
5. Remove the PTO idler pulley
guard (A).
6. Reach up in front of the
clutch with a needle nose
pliers, and remove the
hairpin (B) and washer that fastens the belt
tensioner rod to the belt tension rocker.
Service - 55
A
B
B
Decrease
Increase
A