Tadano GR-130EX, Руководство по обслуживанию

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Y-3. Y-3.
Adjusting Pressure (Pneumatic Pressure)
22
WY03-0123E
Y-3 Adjusting Pressure (Pneumatic Pressure)
Item
Set pressure
Remarks
No. in
circuit
diagram
kPa kgf/cm
2
psi
Pressure
regulator
Turning on pressure 710 ± 20 7.2 ± 0.2 103 ± 3 Check that the air dryer
recovers its performance
during unloading.
163
Turning off pressure 830
+29
–20
8.5
+0.3
–0.2
120
+4
–3
Safety valve
Cracking pressure 850 8.7 123
Must be no leakage within
pressure regulator operation
range.
148
Full opening
pressure
950 ± 20 9.7 ± 0.2 138 ± 3
Air
low-pressure
switch
(total air low
pressure
warning)
Light-on pressure
540
+10
-49
5.5
+0.1
–0.5
78
+1.5
–7
149
Light-off pressure
540
+59
-49
5.5
+0.6
–0.5
78
+8.5
–7
Reducing
valve
For service brake
of front wheels
None
159
For service brake
of rear wheels
(also for brake lock)
540 ± 29 5.5 ± 0.3 78 ± 4 Check top tank.
Air pressure
switch
(stop lamp)
Operating pressure
29
+20
–10
0.3
+0.2
–0.1
4.2
+3
–1.5
152
Air
low-pressure
switch (parking
brake)
Operating pressure 372 ± 20 3.8 ± 0.2 54 ± 3 136
Protection
valve
Inlet pressure 539 ± 34 5.5 ± 0.35 78 ± 5
Opens when inlet pressure
reaches 539 ± 34 kPa (5.5 ±
0.35 kgf/cm
2
) (78 ± 5 psi).
145
Outlet pressure
343 or
over
3.5 or
over
50 or over
With both inlet and outlet
pressure at 690 kPa (7
kgf/cm
2
) (100 psi), as the
outlet pressure gradually
decreases, this valve closes
at a pressure of approx. 343
kPa (3.5 kgf/cm
2
) (50 psi) or
over.
△
0
345-800-22000