Sandpiper Signature Series - Air Distribution Valve Servicing; Air Distribution Valve Servicing Steps

hdb3dl4sm-rev1218
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Model HDB3/HDB4 • 19
Air Distribution Valve Assembly
MAIN AIR VALVE ASSEMBLY PARTS LIST
Item Part Number Description Qty
1 031.021.010 Air Valve Assembly 1
1-A 095.043.010 Body, Air Valve 1
1-B 031.018.000 Sleeve and Spool Set 1
1-C 132.014.358 Bumper 2
1-D 560.020.360 O-Ring 6
1-E 360.010.425 Gasket 2
1-F 165.011.010 End Cap 2
1-G 170.032.330 Hex Head Capscrew 8
IMPORTANT
Read these instructions completely, before installation
and start-up. It is the responsibility of the purchaser
to retain this manual for reference. Failure to comply
with the recommendations stated in this manual will
damage the pump, and void factory warranty.
1-A
1-B1-B
1-C
1-E
1-F
1-G
1-C
1-E
1-F
1-G
1-D
Air Distribution Valve Servicing
See repair parts drawing, remove screws.
Step 1: Remove Hex Head Cap Screws (1-G).
Step 2: Remove end cap (1-F), gasket (1-E) and bumper (1-C).
Step 3: Remove spool part of (1-B) (caution: do not scratch).
Step 4: Press sleeve (1-B) from body (1-A).
Step 5: Inspect O-Ring (1-D) and replace if necessary.
Step 6: Lightly lubricate O-Rings (1-D) on sleeve (1-B).
Step 7: Press sleeve (1-B) into body (1-A).
Step 8: Reassemble in reverse order, starting with step 3.
Note: Sleeve and spool (1-B) set is match ground to a specied clearance
sleeve and spools (1-B) cannot be interchanged.
LEGEND:
= Items contained within Air End Kits
Note: Kits contain components specic to the material codes.
MODEL SPECIFIC
4: AIR END