hd20fnmdl1sm-rev0717
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18
• Model HD20F Non-Metallic
Air Valve with Stroke Indicator Assembly
1-C
1-A
1-B
1-C
1-L
1-J
1-K
1-D
1-E
1-D
1-G
1-F
1-D
1-G
1-F
1-H
Note: Stroke Indicator is standard on Spill Containment models
Air Valve Assembly Parts List
Item
Part Number
Description
Qty
1
031-146-000
Air Valve Assembly
1
1-A
031-143-000
Sleeve and Spool Set w/Pins
1
1-B
095-119-551
Body, Air Valve
1
1-C
165-156-147
Cap, End
2
1-D 560-020-360
O-Ring
8
1-E 675-068-115
Retainer
2
1-F 132-039-552
Bumper
2
1-G 560-029-360
O-Ring
2
1-H
210-008-330
Clip, Safety
2
1-J
165-096-551
Cap, Muffler
1
1-K
530-028-550
Muffler
1
1-L
710-015-115
Screws, Self tapping
4
For pumps with piped exhaust:
1
031-147-000
Air Valve Assembly
1
(includes all items on 031-146-000 minus 1-J, 1-K, & 1-L)
Air Distribution Valve Servicing
See repair parts drawing, remove screws.
Step 1:
air valve from pump (1).
Step 2:
Remove retainer (1-E).
Step 3:
end caps (1-C) & bumpers (1-E) inspect o-rings 1-G.
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
