hdb3dl4sm-rev1218
sandpiperpump
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com
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-B
1-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 specified clearance
sleeve and spools (1-B) cannot be interchanged.
LEGEND:
= Items contained within Air End Kits
Note:
Kits contain components specific to the material codes.
MODEL SPECIFIC
4: AIR
END
