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

Maintenance Instructions
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 se-
lected 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:
88
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 le­
ver should not move. If the FSC lever moves
back when the steering levers are pulled back,
the friction needs to be increased.
FSC Full
Forward Position
Forward Speed Control Position
(Checking Friction Lock)
ADJUSTMENTS
FSC
Actuator
Friction
Washer
Pull Steering Levers
Back To Check
Friction Lock