Hydraulic Hand Pump
Care and Maintenance
Page 25
Use a thin pointed instrument to remove any air bubbles that are trapped in the bourdon tube and
continue to fill. Repeat as required until the bourdon tube is full
7. Dig a large quantity of product out of the High-Pressure
TEE
#17C to form a cavity and fill it with a light
weight hydraulic fluid.
This is not required if the High-Pressure
TEE
#17C has been replaced and is empty.
8. Attach and tighten the new 15,000 PSI Gauge #17B into the High-Pressure
TEE
#17C.
9. Remove the Hydraulic Pump Hose Assembly #17 from the pipe vise and clamp the Hydraulic Hand Pump
into the pipe vise.
10. Attach and tighten the Hydraulic Pump Hose Assembly #17 to the Sealant Barrel Cap #1.
11. Follow the instructions
“Testing the Pump”
on page thirty-three (33) to verify the new 15,000 PSI
Gauge #17B is working properly.
Linkage Assembly Repair and Replacement
There is not a lot that can go wrong with the Linkage Assembly #11 and in most cases, bent parts can be
straightened using a hammer and an anvil. Most wear happens to Bolts #11B that are easily replaceable.
To
disassemble
the Linkage Assembly #11, follow these instructions:
1. Open By-Pass Valve #7; check the 15,000 PSI Gauge #17B to make sure all internal pressure is relieved
from the system.
Make sure all pressure sources have been eliminated.
2. Pull back the Stem and Knob #16A to release the Handle #10.
3. Using an Allen key and a wrench, remove the Lock Nut #11D and Bolt #11B that passes through the
Fulcrum Link #11E, the Fulcrum Assembly #9 and the Pump Piston #5C.
4. Using an Allen key and a wrench, remove the Lock Nut #11D and Bolt #11B that passes through the
Links #11A and the Fulcrum Assembly #9.
Place the Fulcrum Assembly #9 and Handle #10 aside.
5. Using an Allen key and a wrench remove the Lock Nut #11D and Bolt 11B that passes through the
Fulcrum Link #11E, Links #11A and the Body #4A.
6. Replace damaged Links #11 and Fulcrum Link #11E.
You can use a hammer and an anvil to straighten these parts if they are bent.
Inspect all holes in these Links for wear. If any holes are oblong, the part should be replaced.
Inspect the Fulcrum Link #11E slot for wear. If excessive wear is present, replace the Fulcrum
Link #11E.
7. Inspect all Bolts #11B for excessive wear and replace as required.
The amount of wear on the Bolts #11B effects how much play is in the stroke. It is good practice
to always replace all Bolts #11B and Lock Nuts #11D before reassembling.
To
reassemble
the Linkage Assembly #11, follow these instructions:
1. Place a Link #11A on each side of the Fulcrum Assembly #9 with the angle cut up and facing the Fulcrum
Assembly #9.
The top of Links #11A are cut at an angle to allow the Fulcrum Assembly #9 to pivot without
contacting the Links #11A.
