Service
3 - 4
Pilot Supply Pressure Check
All installations
Test Equipment:
•
(1) 1,000 psi (6,895 kPa) Gauge
Connect pressure gauge to test port:
•
Dozer pilot test port
General
Adequate standby pilot supply is required for both dozer
and winch functions.
NOTICE
The values in Table 3-2 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. Shut engine off but turn dozer key switch back on to
provide electrical power to the winch.
2. Move dozer work equipment lever to unlock position
to enable winch.
3. Move control handle from
BRAKE-ON
to
LINE-IN
several times to de-energize the hydraulic system.
4. Move dozer work equipment lever to locked position.
5. Connect a 1000 psi gauge to the dozer pilot test port
(see dozer Service Manual).
6. Start dozer and set to high-free idle.
7. Check that the pressure reading is within the range
shown for your dozer in Table 3-2.
If the pressure is not as specifi ed, check for:
1. Improper pilot supply valve setting or malfunction (See
dozer Service Manual).
2. Pump pressure setting incorrect (See dozer Service
Manual).
3. Leaking pressure hoses or fi ttings.
4. Correct pilot supply location from dozer.
1000 PSI Gauge
at Dozer Pilot
Test Port
See dozer service manual for
pilot test port location.
Figure 3-5 Test Equipment Setup
Table 3-2 Hydraulic Pressure Readings
Dozer
Pilot Pressure in
PSI [kPa]
Dozer Pilot Test Port
Komatsu
D51-24 (K371)
300 - 400
[2,068 - 2,758]
CAT
D6K2 T4F (C805)
400 - 435
[2,758 - 2,999]
CNH
1650M (R42)
350 - 370
[2,413 - 2,551]
CNH
1150M (R371)
Liebherr
PR716 (L39)
290 - 350
[1,999 - 2,413]
TigerCat
920 (Y46F)
350 - 400
[2,413 - 2,758]
Summary of Contents for H5C Series
Page 8: ...vi Notes...
Page 48: ...General 1 40 Notes...
Page 59: ...Troubleshooting 2 6 Notes...
Page 77: ...Service 3 18 Notes...
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