Pilot Valve Assembly
sandpiperpump
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com
13
• Model HDB1½/HDB40
hdb15dl7sm-rev0817
Pilot Valve Assembly
PILOT VALVE ASSEMBLY PARTS LIST
Item
Part Number
Description
Qty
4
095.073.001
Pilot Valve Assembly
1
4-A
095.070.558
Valve Body
1
4-B
755.025.000
Sleeve (With O-Rings)
1
4-C
560.033.360
O-Ring (Sleeve)
4
4-D
775.026.000
Spool (With O-Rings)
1
4-E
560.023.360
O-Ring (Spool)
2
4-F
675.037.080
Retaining Ring
1
4-A
4-F
4-D
4-B
4-C
4-E
Pilot Valve Servicing
With Pilot Valve removed from pump.
Step 1:
Remove snap ring (4-F).
Step 2:
Remove sleeve (4-B), inspect O-Rings (4-C),
replace if required.
Step 3:
Remove spool (4-D) from sleeve (4-B),
inspect O-Rings (4-E), replace if required.
Step 4:
Lightly lubricate O-Rings (4-C) and (4-E).
Reassemble in reverse order.
LEGEND:
= Items contained within Air End Kits
Note:
Kits contain components specific to the material codes.
MODEL SPECIFIC
4: AIR
END
hdf3asl7sm-rev1218
sandpiperpump
.
com
16
• Model HDF3-A/HDF4-A
MODEL SPECIFIC
4: AIR
END
