Stop Block Eccentric Adjustment; Clutch Idler Pulley Travel Adjustment - Walker T23 Operator's Manual

Maintenance Instructions
Use the following procedure to check and adjust
clutch disengagement and brake action:
Stop Block Eccentric Adjustment - Step 1
Use the stop block attached to PTO belt tightener
arm to set the bottom position of the clutch idler pul-
ley in the disengaged position.
should contact the chassis to stop the clutch idler
pulley from moving further down in the disengaged
position. If the stop block is not contacting the
chassis in the disengaged position, it will be neces-
sary to loosen the brake band adjustment nut.
The stop block is an "eccentric" block that will allow
four adjustment positions from 5/16 to 11/16 in.
(8 to 17 mm).
11/16 in.
(17 mm)
7/16 in.
(11 mm)
PTO Belt Tightener Stop Block Adjustments
86
The stop block
9/16 in.
(14 mm)
5/16 in.
(8 mm)
Clutch Idler Pulley Travel Adjustment - Step 2
Adjust the stop block to give 1 to 1-1/2 in. (25 to
38 mm) pulley travel from "clutch engaged" to "clutch
disengaged". To check and adjust the pulley travel,
first engage the clutch, then measure the distance
the pulley moves down as the clutch is disengaged
and the stop block contacts the frame.
NOTE: The importance of this adjustment is if the
pulley travel is excessive and the belt develops too
much slack, the belt will derail when disengaged.
Stop
Block
Stop Block
Contacting Frame

Clutch Idler Pulley Travel Adjustment

ADJUSTMENTS
Pulley
Travel
Engage
Disengage
1 to 1-1/2 in.
(25 to 38 mm)