English
9.808-136.0 Rev. 00 (09/18)
29
6.5
Trouble shoo$ng ac$vi$es
6.5.1
Check valve inspec$on / replacement
1. Using a 24 mm socket remove the low pressure and high
pressure valve caps. See sec on 5.2.1 for part iden fica on.
2. Inspect valve caps and valve
cap O-rings for damage. Re-
place as needed.
3. Remove inlet and outlet
check valves.
4. Remove inlet and outlet
check valve O-rings.
5. Inspect check valves, and
check valve O-rings for dam-
age. Replace if needed
To test the check valves, stand
the valves with their seats
facing upwards. Fill them with
water. If a valve is leaking, the
water will seep out of the
bo"om.
6. Inspect each valve cylinder
for cracking or damage. Re-
place manifold if needed.
7. Install check valve O-rings back into manifold (with new if
needed.
8. Install inlet and outlet check valves (with new if needed).
7. Install high pressure and low pres-
sure valve caps (with new if needed)
to torque. See sec on 7.3. for torque
specifica ons.
6.5
Trouble shoo$ng ac$vi$es
6.5.1
Check valve inspec$on / replacement
