21
Parking Brake Adjustment
WARNING:
Never attempt to adjust the
brakes while the engine is running. Always
disengage PTO, move speed control lever
into neutral position, stop engine and remove
key to prevent unintended starting.
If the tractor does not come to a complete stop when
the brake pedal is completely depressed, or if the
tractor’s rear wheels can roll with the parking brake
applied (and the hydrostatic bypass rod pulled out), the
brake is in need of adjustment. The brake disc can be
found on the right side of the transmission in the rear of
the tractor. Adjust if necessary as follows:
NOTE:
A replacement cotter pin (part no. 714-0111)
is needed to complete this adjustment. Have one on
hand before proceeding.
•
Looking at the transmission from the right side of
the tractor, locate the compression spring and
brake disc. See Figure 18.
Figure 18
•
Carefully remove the cotter pin from the crown nut
on the right side of the brake assembly.
•
Using a feeler gauge, check the gap between the
brake disc and the brake puck. Proper gap is .011".
•
Tighten the crown nut until the proper gap is
achieved.
•
Insert the replacement cotter pin into the crown nut.
Drag Link Adjustment
If the tractor turns tighter in one direction than the other,
or if either the drag link and ball joint are being replaced
due to damage or wear, the drag link may need to be
adjusted. To do so, proceed as follows:
•
Place the steering wheel in position for straight-
ahead travel.
•
Remove the lock nut which secures the ball joint to
the steering arm. See Figure 19.
Figure 19
•
Lift the ball joint out of the steering arm and re-
position both front tires for straight-ahead travel.
•
Loosen the jam nut (See Figure 19) and thread the
ball joint either inward or outward until it aligns with
the hole in the steering arm.
•
Confirm that both the steering wheel and the front
tires are still positioned for straight-ahead travel
before reinserting the ball joint into the steering arm
and securing it with the lock nut removed earlier.
•
Re-tighten the jam nut loosened earlier.
Crown Nut
NOTE:
Rear, right wheel not shown for clarity
Brake Disc
Lock Nut
Steering Arm
Drag Link
Jam Nut
Ball Joint
Summary of Contents for 791
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