Section 3
3 - 17
DRAG-BRAKE Pressure Check
All installations with optional
DRAG-BRAKE
Test Equipment:
•
(1) 1,000 psi (6,895 kPa) Gauges
Connect pressure gauges to test ports:
•
DV (Tee into existing line)
Instructions
1. With the engine shut off, connect pressure gauge in
line on the
DV
hose at the control manifold.
2. Start dozer and set to high-free idle
3. Measure pressure with the
DRAG-BRAKE
switch
activated.
4. The drag brake requires 350 psi to fully engage. Low
pressure will result in premature wear of the friction
discs and added heat generation
If pressure is not at least 350 psi, check for:
1. Improper pilot supply pressure.
2. Malfunctioning solenoid valve.
3. Leaking pressure hoses or fi ttings.
4. Restriction in pressure hose or manifold port.
5. Leaking in gear side of winch. Watch oil level at the fi ll
level plug to determine if there is leaking in gear side.
Figure 3-18 Test Equipment Setup
1000 PSI Gauge
at DV Port
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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