PowrCoat
23
GB
Servicing
Reassembly Procedure
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If cylinder (12) and displacement rod (6) are
reusable, then only a minor kit part # 155-051 or
155-055 may be required for reassembly.
1. Insert upper packing set (19) into pump block (21).
Attention
Peak of “V” packings must point upwards on
reassembly.
2. Insert upper spring (18).
3. Place new lower packing set (14) over piston seat (13).
Attention
Peak of “V” packings must point downward on
reassembly.
4. Replace spring (15), washer (16) and ball (17) on piston seat
(13).
5. Thread piston seat (13) back onto displacement rod (6).
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use Loctite (Part # 426-051) on clean threads.
6. Insert displacement rod (6) assembly through upper packing
set (19) in pump block (21).
7. Place O-ring (20) on end of cylinder (12) and thread back into
pump block (21).
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Lubricate all O-rings before assembly (Piston Lube,
Part # 314-480).
8. Insert new ball (11), ball cage (10) and ball stop (9) into foot
valve (7).
9. Place new PTFE O-ring (8) on cylinder (12) and then install foot
valve assembly (7).
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It is not necessary to overtighten foot valve and
cylinder into pump block. O-ring seals perform
sealing function without excessive tightening. Full
thread engagement is sufficient. The foot valve
(7) may be rotated back up to 1/2 turn from full
engagement for convenient hose position.
10. Insert connecting rod (5) through coupling nut (4) and thread
connecting rod (5) into displacement rod (6).
11. Hold the air motor piston rod (3) at the wrench flats and
thread coupling nut (4) to secure the pump to the motor.
12. Using the stanchions, the stanchion nuts (1) and washers (2),
secure the pump assembly to the bottom of the unit.
13. Replace the two halves of the shield assembly . Secure the
two halves to each other with screws and secure the entire
assembly to the plate (11) with the four screws.
14. For siphon hose attachment, it is critically important that
the thread of the siphon hose fit snugly into the foot valve
with the hose assembly couplings PTFE-taped and sealed to
prevent air inlet leakage.
Service Kits
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The minor service kits for pump assembly 155-
559 come in two versions. They include kits with
1) Polyethylene/Leather packing and 2) Leather
packings.
Service Kits
155-559 pump service kit, minor
Kit Part
No.
Packings*
Description
155-055
Polyethylene/
leather
Includes items 9, 11, 14, 17, 19, 20 (2),
and Loctite sealant 426-051
155-051
Leather
Includes items 9, 11, 14, 17, 19, 20 (2),
and Loctite sealant 426-051
155-559 pump service kit, major
155-505
Polyethylene/
leather
Includes minor service kit 185-050 and
items 6, 12 and 18
155-500
Leather
Includes minor service kit 185-051 and
items 6, 12 and 18
* Refer to the Spare Parts List for pump assembly 155-559 for
the part numbers of each type of upper and lower packings.
