308156
17
Displacement Pump Repair
Disassembly
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 8.
1.
If possible, flush the pump. Relieve the pressure.
2.
Follow Disconnecting the Reciprocator and
Displacement Pump procedure on page 12.
3.
Place the pump in a vise. Unscrew the priming
cylinder (111).
4.
Push the priming piston (112) into the pump until
the hex of the piston coupling (103) is exposed.
5.
Hold the piston coupling (103), and unscrew the
piston rod (119).
6.
Unscrew the packing housing (110) and remove all
parts.
7.
Pull the piston (107) and the priming tube (108)
assembly out of the pump housing.
8.
Unscrew the priming tube (108), and remove all
parts.
9.
Unscrew the piston (107), and remove all parts.
10. Clean all parts thoroughly with a compatible
solvent. Inspect the parts for wear, and replace as
needed. Scoring or irregular surfaces on the
priming tube (108), or inside the cylinder (118)
causes premature packing wear and leaking.
Insert 1/4” dia. rod through hole to hold priming
tube (108) when removing or installing parts
connected to it.
Fig. 13
1
01684A
116
102
115
104*
105*
106
102
115
101
103
107
117
116
108
119
111
112
109
114*
113*
118
110
2
1
Only used on Models 223513 and 223514.
2
