Simplicity AGCO Allis 2000 Series, Service & Repair Manual

Page: 40 / 312

4 Adjustments
Brake System
4 - 2
BRAKE SYSTEM
Brake Linkage Adjustment
This adjustment is used to prevent the brake from
dragging when the brake pedal is released. Brake
engagement is not adjustable and should not require
service for the life of the brake assembly. If the brake
does not hold when engaged, replace the brake pad
assembly.
The brake is fully disengaged when the pedal is released
and the brake arm (B, Figure 1) points straight up. Use
the nut (A) to adjust the brake rod so the brake is not
dragging when the brake is disengaged.
1. Turn off the engine and remove the key from the igni-
tion. DO NOT engage the parking brake.
2. Remove the back bumper to gain access to the brake
rod adjustment nut (A).
3. Angle the brake assembly arm (B) so that it is stand-
ing straight up. Hold in place.
4. With the brake assembly arm straight up and the
brake pedal at rest, turn the brake rod adjustment nut
(A) until the spacer (C) contacts the brake pivot arm
(D). Do not over-tighten. Over-tightening will cause
the brake to drag.
Brake Switch Adjustment
NOTE: Normally, the break pedal switch does not require
any adjustment. In the event that debris damages or
bends the brake switch components, this adjustment pro-
cedure should be followed. The normal angle of the tab is
about 45 degrees, and setting the tab to that point would
be a good starting point.
1. Park the tractor on a level surface.
2. Place blocks in front of and behind the front wheels.
3. Turn the ignition key switch to the OFF position,
remove the key, DO NOT set the parking brake, and
turn the PTO switch off (PTO switch pulled up).
4. Disconnect the negative (-) battery cable
(see Section 7, ELECTRICAL SYSTEM SERVICE).
5. Remove the mower deck and any other accessories
(see Section 6, COMMON SERVICE PROCE-
DURES).
6. Disconnect spark plug wires or glow plug wires to
prevent the possibility of accidental starting while the
PTO is being adjusted.
7. Angle the brake assembly arm so that is standing
straight up. Hold in place.
8. With the brake assembly arm straight up and the
brake pedal at rest, the tab (B, Figure 2) on the brake
pedal arm should not be in contact with the brake
switch (A).
9. As the brake pedal is depressed, the tab (B) should
come into contact with the switch (A) at 1/4 the total
travel distance of the brake pedal.
10. Bend the tab (B) accordingly to engage the switch (A)
at the proper position.
Figure 1. Brake Linkage Adjustment
A. Brake Rod Adjustment Nut
B. Brake Assembly Arm
C. Spacer
D. Brake Pivot Arm
A
C
D
B
Figure 2. Brake Switch Adjustment
A. Brake Switch
B. Tab
A
Direction
of Travel
Bend tab
at crease
B
Not
for
Reproduction