Servicing the bleed-down valve
This service procedure is for bleed-down valve
019309-1. You will need the 015084-1 bleed-down
valve repair kit.
Troubleshooting
Problem Cause
Unable to build water pressure*
High stroke rate
Hard shifting
Water leaking from weep holes
High-pressure valve
failure
Oil leaking from weep holes Actuator failure
Unable to build water pressure* Solenoid valve
failure
* Lack of water pressure is more likely caused by
high-pressure valve failure than by solenoid valve failure.
Service steps
WARNING
Place the main electrical disconnect in the OFF
position and bleed down all high-pressure lines.
Place an Out of Service tag on the main electrical
disconnect and lock it out. Failure to do so may
result in equipment damage or injury to personnel.
Note: Make notes or sketches of the location and ori
-
entation of all components during disassembly to use as
a guide for reassembly later.
1. Remove the hydraulic hose from the oil port of the
bleed-down valve.
2. Remove the gland nut that connects the water drain
tubing to the bleed-down valve.
3. Remove the gland nut from the high-pressure water
inlet port of the valve main body. Remove the
high-pressure water pressure sensor from the valve
body.
4. Remove the valve from the pump bracket and place
it on a clean workbench.
© Flow International Corporation M-390 | 53
CHAPTER 5
Servicing the Pump
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