When the parking brake is locked.
(1) Brake rod
(2) Brake spring
(3) Lock nut
(A) “Parking brake spring length”
5. If the length of the brake spring is not correct,
adjust it.
(See
“Adjustment of brake spring length”
as
follows.)
6. Release the parking brake completely.
7. Hold the brake rod lightly.
8. Check the brake spring play.
(B): Proper brake spring
play
Reference:
0.5 to 1.0 mm
(0.02 to 0.04 in.)
When the parking brake is released.
(1) Brake rod
(2) Brake spring
(3) Lock nut
(A) “Hold the brake rod”
(B) “Parking brake spring play”
9. If the brake spring play is not correct, adjust it.
(See
“Adjustment of brake spring play”
as follows.)
Adjustment of brake spring length
1. Place the motion control lever to the
“NEUTRAL
LOCK”
position.
2. Apply the parking brake to the lock position.
3. Loosen the lock nuts.
4. Adjust the spring length to the recommendation.
5. Lock the nuts.
6. Check
the
brake
spring
play
to
the
recommendation.
If there is no play, adjust the brake spring play
again.
(See
“Adjustment of brake spring play”
as follows.)
7. Adjust the other side spring to the same dimension.
Adjustment of brake spring play
1. Place the motion control lever to the
“NEUTRAL
LOCK”
position.
2. Be sure to chock the rear wheels.
3. Release the parking brake completely.
4. Loosen the lock nuts.
5. Hold the brake rod by hand.
6. Tighten the nut to the correct space between the
end of the spring and the nut.
7. Lock the nuts.
8. Adjust the other side spring to the same dimension.
4.2 Check on the slope
1. Place the machine on a 17° ramp.
2. Apply the parking brake.
3. Place the motion control levers in
“NEUTRAL
LOCK”
position and shut off the engine.
4. Check that the machine does not move.
(A) 17° ramp
NOTE :
• For parking brake test purposes, only use 17°
ramp.
5. Greasing
WARNING
To avoid serious injury or death:
• Be sure to stop the engine and remove the key
before greasing.
Grease the following location.
If you operated the machine in extremely wet and
muddy conditions, lubricate grease fittings more often.
MAINTENANCE
EVERY 100 HOURS
72
ZD1211,ZD1221