A SERVICE OF

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PowrCoat 25
GB
Servicing
Reassembly Procedure
1. Install new cylinder O-ring (7) into O-ring groove of cylinder
(6).
2. Place new foot valve ball (11) in foot valve (7) and install ball
stop (10) between the two new cylinder gaskets (9).
3. Connect foot valve (7) to cylinder (12).
4. Place new lower packing set (14) over piston seat (13) (from
#3, 155-559).
Attention
Peak of “V” packings must point downward on
reassembly.
5. Insert upper packing set (19) into pump block (21) (from #1,
155-559).
Attention
Peak of “V” packings must point upwards on
reassembly.
6. Insert displacement rod (6) through pump block (21) holding
packings (19) in place with ngers.
7. Place packing spring (18) and new cylinder gasket (22) over
displacement rod (6) and up into the lower cavity of pump
block (21).
8. Place spring retainer (16) over lower end of displacement rod
(6) and packing spring (15) over spring retainer (16). Place
new piston ball (17) onto piston seat (13) and connect piston
seat (13) to displacement rod (6).
9. Insert cylinder (12) over packings and connect to pump block
(21).
Attention
Cylinder gasket (22) and packing spring (18) must be
in plae before connecting cylinder to pump block.
10. Insert connecting rod (5) through coupling nut (4) and thread
connecting rod (5) into displacement rod (6) (from #11, 155-
559).
11. Hold the air motor piston rod (3) at the wrench ats and
thread coupling nut (4) to secure the pump to the motor (from
#12, 155-559).
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 t snugly into the foot valve
with the hose assembly couplings PTFE-taped and sealed to
prevent air inlet leakage.
Service Kits
Service Kits
0533908 pump service kit, minor
Kit Part
No.
Packings Description
140-052 Polyethylene/
leather
Includes items 8, 9 (2), 11, 14, 17, 19,
22andLoctitesealant426-051
0533908 pump service kit, major
140-501 Polyethylene/
leather
Includes minor service kit 140-501 and
items 6 and 12)