Pilot Valve Assembly
ATEX Compliant
PILOT VALVE ASSEMBLY PARTS LIST
Item
Part Number
Description
Qty
4
095.074.001
Pilot Valve Assembly
1
4A
095.071.557
Pilot Valve Body
1
4B
755.025.162
Pilot Valve sleeve
1
4C
560.033.360
O-Ring
4
4D
775.014.115
Pilot Valve Spool
1
4E
560.023.360
O-Ring
4
4F
675.037.050
Retaining Ring
1
Pilot Valve Servicing
With Pilot Valve removed from pump.
Step 1:
Remove snap ring (4F).
Step 2:
Remove sleeve (4B), inspect O-Rings (4C),
replace if required.
Step 3:
Remove spool (4D) from sleeve (4B),
inspect O-Rings (4E), replace if required.
Step 4:
Lightly lubricate O-Rings (4C) and (4E).
Reassemble in reverse order.
4F
4A
4D
4B
4C
4E
hdf1dl2sm-rev0316
sandpiperpump
.
com
Model HDF1/HDF25 •
12
MODEL SPECIFIC
4: AIR
END
