Hydraulic Hand Pump
Care and Maintenance
Page 22
5. Clean and return the Handle #10 to the Fulcrum Assembly #9.
6. Pull back the Stem and Knob #16A to release the Handle #10.
7. Lift the Handle #10 up until it reaches its full height.
8. Remove the Bolt #11B and Lock Nut #11D that goes through the Fulcrum Link #11E, through the top of
the Pump Piston #5C and through the Fulcrum Assembly #9.
9. Remove the Bolt #11B and Lock Nut #11D that goes through the Links 11A and through the Pump Body
#4A.
10. Place the Handle #10 and Fulcrum Assembly #9 to one side.
11. Place the Hydraulic Hand Pump in a pipe vise by the Fluid Barrel #13 with the Sealant Barrel #3 up.
12. Place a suitable container under the Hydraulic Hand Pump to catch any spilled hydraulic fluid.
13. Pull the Pump Piston #5C out of the Hydraulic Pump Cylinder #5.
14. Unscrew the Hydraulic Pump Cylinder #5 with a spanner pin wrench (The cylinder cavity will probably
leak a small amount of hydraulic fluid).
15. Using an o-ring tool, replace the Bottom Cylinder O-Ring #5B at the bottom of the Hydraulic Pump
Cylinder #5 cavity in the Pump Body #4A.
16. Using an o-ring tool replace the Pump Piston O-Ring #5D inside the top of the Hydraulic Pump Cylinder
#5.
17. Place the Cylinder Neck O-Ring #5A on the Hydraulic Pump Cylinder #5.
18. Screw the Hydraulic Pump Cylinder #5 into the Pump Body #4A and tighten with a spanner pin wrench.
19. Rub a thin coat of hydraulic fluid over the Pump Piston #5C and push into the Hydraulic Pump Cylinder
#5.
20. Reconnect the Fulcrum #9 and Handle #10 to the Pump Body #4A.
21. Reattach the head assembly.
22. Follow the
“Bleeding and Filling the Hydraulic Fluid Bag”
instructions on page fourteen (14).
By-Pass Valve Repair and Replacement
A faulty By-Pass Valve #7 will not allow hydraulic pressure to build up in the Hydraulic Hand Pump. Hydraulic fluid
will return into the Fluid Bag #12 and / or leak past the By-Pass Valve O-Ring #7C depending on the extent of the
damage.
1. Open By-Pass Valve #7; check the 15,000 PSI Gauge #17B to make sure all internal pressure is relieved
from the system.
2. Remove head assembly (Sealant Barrel Cap #1 and Hydraulic Pump Hose Assembly #17) from Sealant
Barrel #3.
3. Remove the Handle #10 from the Fulcrum Assembly #9 and clean off any contaminants such as sand or
dirt.
4. Place the Handle #10 so it is centered on the Piston Assembly #2 then push the Piston Assembly #2 to
the bottom of the Sealant Barrel #3.
NOTICE: be very careful not to scratch or score the inside of the Sealant Barrel #3.
5. Clean and return the Handle #10 to the Fulcrum Assembly #9.
6. Place the Hydraulic Hand Pump in a pipe vise by the Fluid Barrel #13 with the Sealant Barrel #3 up.
