Step 5 - Maximum Forward Speed Adjustment; Step 6 - Forward Speed Control Friction Adjustment - Walker B27i Operator's Manual

Maintenance Instructions
Adjustments
4. Lengthen the control rod on the slower side by
turning the tracking adjustment nut counter-
clockwise until straight tracking and neutral
are both achieved.

Step 5 - Maximum Forward Speed Adjustment

If the machine is tracking straight throughout the
speed range except at maximum speed, use the
following adjustment procedure:
1. Raise the seat panel to access the maximum
speed adjustment set screw. Loosen the jam
nut and turn the adjustment screw counter-
clockwise to allow the FSC lever to move
(over-travel) to the full forward position.
2. Lower the seat to the normal operating posi-
tion and observe if one steering lever is ahead
of the other. Raise the seat and turn the ad-
justment screw clockwise until the steering
levers are aligned with each other with the
FSC lever full forward (this may take several
trials to bring the levers to alignment). Tighten
the jam nut.
3. Test drive the machine to confirm that straight
tracking is being achieved at maximum for-
ward speed (FSC lever in full forward posi-
tion).
T-Handle
Hex Wrench
Maximum Speed Tracking Adjustment
(Shown with Parts Removed for Clarity)
66
Maximum
Speed Adjust-
ment Screw
Step 6 - Forward Speed Control Friction
Adjustment
FSC Full
Forward Position
FSC Friction Adjustment Test
(Checking Friction Lock)
1. Place the FSC lever in the full FORWARD
position, and pull both steering levers fully
back; the FSC lever should not move. If the
FSC lever moves back the friction needs to
be increased.
2. With the steering levers held back, move the
FSC lever back from the FORWARD position.
With a proper amount of friction adjusted, the
FSC le ver should move back with a slight
amount of re sistance (friction). If the FSC
lever movement is "stiff", the friction needs to
be decreased.
3. The FSC friction is increased or decreased
by tightening or loosening the friction ad-
justment nut. Loosen or tighten the nut and
check the control function until the conditions
of both steps 1 and 2 (above) are met.
FSC Friction Adjustment Nut
B27i
Pull Steering
Levers Back to
Check Friction
Lock
FSC Friction
Adjustment Nut