Maintaining The Hydraulic System - WAGNER HEAVYCOAT HC730 Owner's Manual

heavycoat
INsPeCTIoN (fIg. 17)
Inspect all parts of the filter assembly before reassembly.
1. Inspect the ball inside the filter element. If the ball has
pressure cuts or scratches, replace the filter element.
a. If the ball is cut, remove the PTFE o-ring (5) using an
o-ring pick and remove the carbide seat (6).
b. Check the seat for nicks or grooves. If the seat is
damaged, replace.
Removal of the PTFE o-ring will damage the
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o-ring and require replacement.
2. Remove the spring (2) from the spring guide on the filter
cap.
a. Measure the length of the spring uncompressed. If it
measures less than 3/4" from end to end, replace.
b. Push the spring back onto the spring guide until it
"snaps" back into position.
3. Inspect the two PTFE gaskets (7,8) and the PTFE o-ring (5)
for deformity, nicks, or cuts. Replace, if needed.
The PTFE gaskets, PTFE o-ring, and spring are
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packaged in Filter Service Kit P/N 930-050.
reassemBly (fIg. 17)
After cleaning and inspecting all parts, reassemble the filter.
1. Place the carbide seat (6) into the filter body (4). Make sure
the beveled side of the seat is facing up.
2. Place the PTFE o-ring (5) into the groove on the outer
diameter of the carbide seat (6).
3. Place the filter element with ball (3) into the filter body (4).
The top and bottom of the filter element with
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ball are identical.
4. Push the spring (2) back onto the spring guide of the filter
cap (1) until it "snaps" back into position, if not already
done.
5. Place the thin PTFE gasket (8) onto the step at the top of
the filter body (4).
6. Place the thick PTFE gasket (7) onto the top of the thin
gasket (8).
7. Tighten the filter cap assembly (1) onto the filter body (4).
7.4

maINTaININg THe HyDraulIC sysTem

Use of Wagner's Hydraulic Fluid is mandatory in
the HeavyCoat hydraulic system. Do not use any
other hydraulic fluid. Use of any other hydraulic
Attention
fluid may seriously damage the hydraulic system
and will void the warranty.
1. Check the hydraulic fluid daily. The hydraulic fluid level
should be touching the bottom of the dipstick (1). If it
is dry, add only Wagner Hydraulic Fluid (P/N 0555425).
Never add or change hydraulic fluid except in a clean,
dust-free area. Contamination of the hydraulic fluid will
shorten hydraulic pump life and may void warranty.
Make sure the unit is on a flat, level surface when
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checking the hydraulic fluid level.
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maintenance
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