22 PowrCoat
GB
Servicing
8.3
Servicing the Fluid Pump Assembly P/N 155-559
1
2
21
3
5
6
18
14
15
22
19
16
7
8
9
10
11
12
13
20
17
4
Attention
use of non-Titan manufactured service parts
may void warranty.
The 155 Series Pump should receive a routine servicing after
approximately 1000 hours of use or earlier if there is excessive
leakage from the top packing, or if pump strokes become faster
on one stroke or another. The use of Titan Piston Lube Part #
314-480 is recommended as an upper packing lubricant. DO
NOT SUBSTITUTE oil, water or solvent for an upper packing
lubricant.
Disassembly Procedure
1. Test pump before disassembly. Follow test procedure in
Troubleshooting Guide - Fluid Section.
2. Loosen the four screws that secure the shield assembly
to the plate. Loosen the two screws that secure the two
halves of the shield together and remove the shield.
3. Remove siphon hose assembly. Remove stanchion nuts
(1) and washers (2).
4. Hold the air motor piston rod (3) at the wrench flats and
unthread coupling nut (4) to separate pump from motor
Attention
Never use a pipe wrench, pliers, etc. on the
chrome part of hydraulic, air or fluid section
rod.
5. Remove coupling nut (4) on connecting rod (5). Remove
connecting rod (5) from displacement rod (6).
6. For easier disassembly, unthread and remove foot valve
(7).
7. Remove O-ring (8), ball stop (9), ball cage (10) and ball
(11).
8. Remove cylinder (12).
9. Remove displacement rod (6).
10. Place piston seat (13) in a vise and use a wrench on the
flats to remove the displacement rod (6) from the piston
seat (13).
11. Remove lower packing set (14), spring (15), washer (16),
and ball (17).
12. Remove upper packing spring (18), packing set (19) and
O-ring (20).
13. Clean and inspect all parts. Inspect displacement rod’s
(6) and cylinder’s (12) chrome for grooves, dents or worn
areas. Replace if hard chrome is damaged. Inspect valve
seats and replace if cracked or worn.
Technical Data
Displacement Rod Area
.976 in2 (6.3 cm2)
Stroke Length
4 in. (10.2 cm)
Displacement Volume /
Stroke
3.9 in3 (63.9 cm3); 0.064 liter
Displacement Volume / 40
Cycles / 80 Strokes
312 in3 (5113 cm3); 1.35 gal
(5.113 liter)
Motor Selection
700/900 Series
Motor Pump Ratio
45:1 (745) / 60:1 (960)
0533745W
0533745C
0533960W
0533960C
