Section 3
3 - 9
LINE-IN Pressure Check
All except installation on D155AX-6/-7 (K64), D8R Series II (C59), SD32DQ (U64)
Test Equipment:
•
(1) 1,000 psi (6,895 kPa) Gauge
Connect pressure gauge to test port:
• RI
NOTICE
The values in Table 3-5 are based on
information available at time of publishing.
Refer to the service/maintenance manual
supplied with your dozer to verify the
available pilot pressure.
Instructions
1. With the engine shut off, connect a 1000 psi pressure
gauge in line on the RI hose at the control manifold.
2. Start dozer and set to high-free idle.
3. Measure pressure with the control lever in the LINE-
IN position.
4. Pressure should be as specifi ed in Table 3-5.
If the LINE-IN pressure is not as specifi ed in Table 3-5,
check for:
1. Improper pilot supply pressure.
2. Malfunctioning control lever.
3. Leaking pressure hoses or fi ttings.
4. Restriction in pressure hose or manifold port.
Table 3-5 Hydraulic Pressure Readings
Line-In Hose
(RI Port)
Dozer
Pilot Pressure in
PSI [kPa]
Test Port RI
Komatsu
D275AX-5 (K65)
500 - 570
[3,447 - 3,930]
Komatsu
D85-15 (K50)
534 - 618
[3,682 - 4,261]
Liebherr
PR754 (L54)
290 - 350
[1,999 - 2,413]
Liebherr
PR756 (L56)
290 - 350
[1,999 - 2,413]
Liebherr
RL56 (L561)
335 - 365
[2,310 - 2,517]
CAT
D8T Tier 4 (C74)
400 - 450
[2,758 - 3,103]
John Deere
JD1050K (E75)
620 - 680
[4,275 - 4,688]
Figure 3-9 Test Equipment Setup
Содержание H12E
Страница 8: ...vi Notes ...
Страница 48: ...General 1 40 Notes ...
Страница 49: ...Section 1 1 41 Figure 1 30 H12E Hydraulic Electrical Schematic Option Code B Komatsu D275AX 5 K65 ...
Страница 52: ...Section 1 1 44 Figure 1 33 H12E Hydraulic Electrical Schematic Option Code B Komatsu D85 15 K50 ...
Страница 53: ...Section 1 1 45 Figure 1 34 H12E Hydraulic Electrical Schematic Option Code B Liebherr PR754 L54 ...
Страница 54: ...Section 1 1 46 Figure 1 35 H12E Hydraulic Electrical Schematic Option Code B CAT D8T C74 ...
Страница 55: ...Section 1 1 47 Figure 1 36 H12E Hydraulic Electrical Schematic Option Code D CAT D8T C74 ...
Страница 56: ...Section 1 1 48 Figure 1 37 H12E Hydraulic Electrical Schematic Option Code B John Deere JD 1050K E75 ...
Страница 57: ...Section 1 1 49 Figure 1 38 H12E Hydraulic Electrical Schematic Option Code D John Deere JD 1050K E75 ...
Страница 58: ...Section 1 1 50 Figure 1 39 H12E Hydraulic Electrical Schematic Option Code D Shantui SD32DQ U64 ...
Страница 59: ...Section 1 1 51 Figure 1 40 H12E Hydraulic Electrical Schematic Option Code D CAT D8R C59 ...
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