Forward Speed Control Friction Lock - Walker D21d Operator's Manual

Maintenance Instructions
Adjustments
Engine Pulley
Idler Pulley
1/2 in.
(13 mm)
PTO Clutch Disengagement Adjustment
b. Check both the brake band and brake
drum on the drive pulley for wear. Replace
worn brake parts and readjust pulley travel
as described by step 1 (above).

Forward Speed Control Friction Lock

The FSC friction lock is adjusted to hold the
selected forward speed when the steering levers
are moved. The friction should not be so heavy as
to make moving the FSC difficult (too much
friction). The procedure for checking and adjusting
the FSC friction lock is as follows:
92
PTO Drive
Pulley
Clutch
Brake Band
Adjustment Nut
Friction
Adjustment Nut
Forward Speed Control Friction Lock
1. Place the FSC in the full FORWARD position
and pull both steering levers back; the FSC
lever should not move. If the FSC lever
moves back when the steering levers are
pulled back, the friction needs to be in-
creased.
FSC Full
Forward Position
Forward Speed Control Position
(Checking Friction Lock)
D21d
FSC
Actuator
Friction
Washer
Pull Steering Levers
Back To Check
Friction Lock