Hitachi ZW370 Technical Manual page 43

System
Performance of
service brake
Performance of
parking brake
Brake line setting
pressure
2
MPa (kgf/cm ) (psi)
Accumulator charge
time (sec)
Number of brake
pedal applications
Declutch
engagement
(cm) (in)
Note
These are the standard measurement values for the
machines at the time when delivered from the factory.
Item
Measurement item
Shift lever position 2nd speed reverse
Engine speed Maximum (HI)
Shift lever position 3rd speed reverse
Engine speed Maximum (HI)
Off (Cut-out)
Unloader valve
setting pressure
On (Cut-in)
Low-pressure alarm switch setting pressure
(For brake accumulator circuit)
The time from the low-pressure
Engine speed (LI) alarm is turned off till the
unloading valve cuts off pressure
Run engine 1 minute high idle, then stop the engine.
(Turn key switch "ON" with engine off.)
Step on the brake pedal and release, and check the
number of times until the low-pressure alarm is turned
on.
Engine: Maximum speed/ Declutch pedal: Quick
release
(Distance the loader rolls back before moving
forward.)
03 Measurement for Performance Check
Standard Measurement Values for Performance Check
Standard measurement
values for performance check
Fuel efficient
Normal
Slowly increase the engine
speed, and check that the
machine does not move at the
maximum engine speed.
11.8±0.5 (120±5)
(1,706±71)
6.9±1.0 (70±10)
(995±142)
3.9±0.5 (40±5)
(569±71)
16
at least 10 times
15 (6) or less
ZW370 FS 03-5
Remarks
mode
Before brake check, be
sure to disconnect the
cable connector of
parking brake solenoid
valve.
Repeat stepping on the
brake pedal as follows:
On: 5 sec.
Off: 5 sec.
1/5 slope
(approx. 11º), unladen,
1st speed