Group 3 Tests And Adjustments - Hyundai HL955 Manual

GROUP 3 TESTS AND ADJUSTMENTS

GROUP 3 TESTS AND ADJUSTMENTS
1. PARKING BRAKE PERFORMANCE 1. PARKING BRAKE PERFORMANCE
1) 1) MEASUREMENT CONDITION EASUREMENT CONDITION
(1) Tire inflation pressure : Specified pressure
(2) Road surface : Flat, dry, paved surface
with 1/5 (11˚ ) gradient.
20'
(3) Machine : In operating condition
Item
Parking brake Keep machine on 20%
performance
(11
2) 2) MEASURING PROCEDURE MEASURING PROCEDURE
(1) Start the engine and drive the machine
straight up a 1/5 gradient with the bucket
unloaded.
(2) Depress the service brake, place the gear
selector lever in neutral, then stop the
engine.
(3) Turn the parking brake switch ON, then
slowly release the service brake pedal
and the machine must be kept stopped.
※
The measurement must be made with
the machine facing either up or down
the slope.
2. 2. ADJUSTMENT OF PARKING BRAKE ADJUSTMENT OF PARKING BRAKE
(1) External brake inspection
·Inspect for wear of brake pad
(2) Refer to the PARKING BRAKE SYSTEM
on the page 4-22.
Standard valve
˚
20') gradient
20%
gradient
Setting screw
4-39
11 20'
760F4BS17
20%
gradient
11 20'
760F4BS18
Lock nut
7609A4BS27