MacDon 9250, Operator'S Manual

Page: 110 / 160

Form # 46584 Issue 11/06 Web Rev_01
108
MAINTENANCE/SERVICE
Traction Drive: Park Brake for Models
9250/9350, 4940/4950, 2940/2950,
8140/8150
The park brake is applied when brake lever (A) is
locked in the up position.
Adjust park brake after the first 10 hours of
operation and every 100 hours thereafter.
To increase brake force:
1. Move lever (A) down to release brake.
2. Turn knob (B) clockwise (towards the seat) until
brake force is adequate. Force required to raise
lever to the engaged position should be 70 to
90 lbs. (300 - 400 N).
NOTE: When brakes are approximately half worn,
knob (B) will reach the end of the adjustment
range. At this time, perform the following
adjustment:
1. Turn knob (B) counter-clockwise (towards the
side console), back to the beginning of the
adjustment range.
2. At the rear of both tractor frame legs, remove
locknut (C) and retaining bar (D). Move link (E)
to welded bolt (F) and replace retaining bar and
locknut.
3. Turn locknut (C) until the gap between the head
of the welded bolt (F) and retaining bar (D) is
3/8 inch (10 mm) as shown.
4. Turn knob (B) on brake lever clockwise until
brake force is adequate. Force required to raise
lever to the engaged position should be 70 to
90 lbs. (300 - 400 N).
NOTE: When installing new brake bands, return
link (E) to original position, both sides, and adjust
hardware as shown.
A
B
PARK BRAKE ADJUSTMENT
D
C
F
E
REPOSITION BRAKE LINK ON FRAME LEG
AT HALF-WEAR STAGE
ADJUST BRAKE LINK HARDWARE