Sandpiper Signature Series - Pilot Valve Assembly Servicing; Pilot Valve Servicing Steps

hdb3dl4sm-rev1218
sa ndp ipe rpu mp.com
20 • Model HDB3/HDB4
Pilot Valve Assembly
PILOT VALVE ASSEMBLY PARTS LIST
Item Part Number Description Qty
5 095.073.001 Pilot Valve Assembly 1
5-A 095.070.558 Valve Body 1
5-B 755.025.000 Sleeve (With O-Rings) 1
5-C 560.033.360 O-Ring (Sleeve) 4
5-D 775.026.000 Spool (With O-Rings) 1
5-E 560.023.360 O-Ring (Spool) 2
5-F 675.037.080 Retaining Ring 1
5-A
5-F
5-D
5-B
5-C
5-E
Pilot Valve Servicing
With Pilot Valve removed from pump.
Step 1: Remove snap ring (5F).
Step 2: Remove sleeve (5B), inspect O-Rings (5C),
replace if required.
Step 3: Remove spool (5D) from sleeve (5B),
inspect O-Rings (5E), replace if required.
Step 4: Lightly lubricate O-Rings (5C) and (5E).
Reassemble in reverse order.
LEGEND:
= Items contained within Air End Kits
Note: Kits contain components specic to the material codes.
MODEL SPECIFIC
4: AIR END