Hyundai HX145LCR Manual page 443

15) SWING PARKING BRAKE RELEASING PILOT PRESSURE
(1) Preparation
Stop the engine.
Loosen the cap and relieve the pressure
in the tank by pushing the top of the air
breather.
The pressure release L wrench to bleed
air.
Install a connector and pressure gauge
assembly to swing motor SH port, as
shown.
Star t the engine and check for oil
leakage from the adapter.
Keep the hydraulic oil temperature at
50 5˚C.
(2) Measurement
Select the following switch positions.
Power mode switch : P mode
Operate the swing function or arm roll in
function and measure the swing brake
c o n t r o l p r e s s u r e w i t h t h e b ra ke
disengaged. Release the control lever to
return to neutral and measure the control
pressure when the brake is applied.
Repeat step three times and calculate
the average values.
Evaluation
(3)
The average measured pressure should be within the following specifications.
Model
HX145CR
HX145LCR
Description
Brake disengaged
Brake applied
7-18
Standard Allowable limits
40 Over 9
0
SH
145ZF7MS14
Unit : kgf / cm
Remarks
-
2