Brake Maintenance
Adjusting the Service Brakes
Adjust the service brakes when there is more than 1 inch (25
mm) of “free travel” of the brake pedal, or when the brakes
do not work effectively. Free travel is the distance the brake
pedal moves before braking resistance is felt.
1.
Disengage the locking latch from the brake pedals so
that both pedals work independently of each other.
2.
To reduce free travel of the brake pedals, tighten the
brakes:
A.
Loosen the front nut on the threaded end of the
brake cable.
B.
Tighten the rear nut to move the cable backward
until the brake pedals have 1/2 to 1 inch (13 to
25 mm) of free travel.
C.
Tighten the front nuts after the brakes are adjusted
correctly.
Belt Maintenance
Servicing the Alternator Belt
Service Interval:
After the first 10 hours
Every 100 hours
Check the condition and tension of the belts (Figure 69) after
every 100 operating hours.
1.
Proper tension will allow 3/8 inch (10 mm) deflection
when a force of 10 lb is applied on the belt midway
between the pulleys.
2.
If the deflection is not 3/8 inch (10 mm), loosen the
alternator mounting bolts (Figure 69). Increase or
decrease the alternator belt tension and tighten the
bolts. Check the deflection of the belt again to ensure
that the tension is correct.
Figure 69
1.
Alternator
2.
Mounting bolt
Re-tensioning the Blade Drive
Belts
Service Interval:
After the first 10 hours
Every 50 hours
Check the condition and tension of the cutting unit drive belts
initially after 8 hours of operation and every 50 operating
hours thereafter.
When properly tensioned, the extension spring (hook to
hook) measurement should be approximately 3.50 ±.25 inch
(inside). Once the correct spring tension is attained, adjust
the stop bolt (carriage bolt) until there is approximately .125
+.060/-.000 inch clearance between the head of the bolt and
the idler arm (Figure 70).
Note:
Make sure the belt is positioned on the spring side
of the belt guide (Figure 70).
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