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03-6
Measurement for Performance Check
Standard Measurement Values for Performance Check
Relief valve setting
pressure
2
MPa (kgf/cm
) (psi)
Fan maximum revo-
lution
-1
min
(rpm)
Performance of ser-
vice brake
Performance of park-
ing brake
Brake line setting
pressure
2
MPa (kgf/cm
) (psi)
Accumulator charge
time (sec)
Number of brake
pedal applications
Declutch engagement
(cm) (in)
Loading line main relief pressure (HI)
Loading line overload relief pressure (LI)
Steering line main relief pressure (HI)
Steering line overload relief pressure (LI)
Fan motor line relief pressure (HI)
(Reference values)
Pilot line reducing pressure (LI)
Engine water temp. < 94ºC (200ºF)
S/N 9001~9010
Engine water temp. > 94ºC (200ºF)
Engine water temp. < 80ºC (176ºF)
S/N 9011~
Engine water temp. > 93ºC (200ºF)
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
(LI)
On (Cut-in)
Low-pressure alarm switch setting pressure
(For brake accumulator circuit)
Brake line reducing pressure
Auto brake reducing pressure
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 num-
ber of times until the low-pressure alarm is turned on.
Engine: Maximum speed/ Inching pedal: Quick release
(Distance the loader rolls back before moving forward.)
20.6 ± 0.5 (210 ± 5)
(2,986 ± 71)
23.5 ± 0.5 (240 ± 5)
(3,413 ± 71)
20.6 ± 0.5 (210 ± 5)
(2,986 ± 71)
24.5
(3,555
Low press.: 9.5 (97) (1,380)
S/N 9001~9010
High press.: 19.0 (194)
(2,760)
Low press.: 9.5 (97) (1,380)
S/N 9011~
High press.: 18.1 (185)
(2,625)
3.5 (36) (512)
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 ± 0.3 (40 ± 3)
(569 ± 43)
12.3 (125) (1,778)
3.5 (36) (512)
at least 11 times
15 (6) or less
Run engine at lowest
possible speed while
setting
Run engine at lowest
+1.0
+10
(250
)
0
0
possible speed while
+142
)
0
setting
1,120
Low press. 9.5 MPa
High press. 19.0
1,600
MPa
1,120
Low press. 9.5 MPa
High press. 18.1
1,600
MPa
Before brake check,
be sure to discon-
↑
nect the cable con-
nector of parking
brake solenoid valve.
16
Repeat stepping on
the brake pedal as
follows:
On: 5 seconds
Off: 5 seconds
1/5 slope
(approx. 11º),
unladen, 1st speed
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