hd20fnmdl1sm-rev0717
sandpiperpump
.
com
Model HD20F Non-Metallic •
17
Air Distribution Valve Assembly
1-C
1-D
1-A
1-B
1-D
1-C
1-H
1-F
1-G
1-D
1-E
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.
Air Valve Assembly Parts List
Item
Part Number
Description
Qty
1
031-140-000
Air Valve Assembly
1
1-A
031-139-000
Sleeve and Spool Set
1
1-B
095-119-551
Body, Air Valve
1
1-C
165-140-551
End Cap
2
1-D 560-020-360 O-Ring
10
1-E 675-068-115 Retainer
2
1-F
165-096-551
Cap, Muffler
1
1-G
530-028-550
Muffler
1
1-H
710-015-115
Screws, Self tapping
4
For pumps with piped exhaust:
1
031-141-000
Air Valve Assembly
1
(Includes all items used on 031-140-100 minus items
1-F,1-G & 1-H)
Air Valve Assembly Parts List
Brass / Stainless
Item
Part Number
Description
Qty
1
031-140-162
Air Valve Assembly
1
1-A
031-139-162
Sleeve and Spool Set
1
1-B
095-119-551
Body, Air Valve
1
1-C
165-140-551
End Cap
2
1-D 560-020-360 O-Ring
10
1-E 675-068-115 Retainer
2
1-F
165-096-551
Cap, Muffler
1
1-G
530-028-550
Muffler
1
1-H
710-015-115
Screws, Self tapping
4
For pumps with piped exhaust:
1
031-141-162
Air Valve Assembly
1
(Includes all items used on 031-140-162 minus items
1-F,1-G & 1-H)
Air Distribution Valve Servicing
See repair parts drawing, remove screws.
Step 1:
Remove air valve from pump (1).
Step 2:
Remove retainer (1-E).
Step 3:
Remove end caps (1-C).
Step 4:
Remove spool part of (1-A) Inspect for wear or damage.
Step 5:
Press sleeve part of (1-A) from body (1-B) Inspect for
wear or damage.
Step 6:
Inspect o-rings (1-D) and replace as needed.
Step 7:
Lubricate o-rings (1-D) and press sleeve (1-A) in body (1-B).
Step 8:
Press sleeve part of (1-A) into body (1-B).
Step 9:
Reassemble in reverse order.
Note:
Sleeve and spool (1-A) set is match ground to a specified
clearance. Individual sleeves and spools (1-A) cannot
be interchanged.
MODEL SPECIFIC
4: AIR
END
