Servicing The Pump Assembly 0533908 • Sc75 - WAGNER 0556730W Betriebsanleitung

Servicing
8.4 Servicing the Fluid Pump Assembly P/N 0533908
4
19
18
22
3
5
21
2
1
6
16
15
14
GB
Technical Data
0556975C
Displacement Rod Area
0556975W
Stroke Length
Displacement Volume /
Stroke
Displacement Volume / 40
Cycles / 80 Strokes
Motor Selection
Motor Pump Ratio
i
17
13
Attention
The fluid pump assembly 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 Wagner
12
EasyGlide Part # 0508619 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
8
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
9
(1) and washers (2).
4. Hold the air motor piston rod (3) at the wrench flats and
10
unthread coupling nut (4) to separate pump from motor.
9
11
Attention
5. Secure pump block (21) in vise and remove cylinder (12)
with foot valve (7) intact.
6. Remove cylinder gasket (22), packing spring (18) and
packing set (19).
7
7. 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) (from #10, 155-559).
8. Remove lower packing set (14), spring (15), spring
retainer (16) and ball (17) (from #11, 185-551).
9. Remove ball stop (10), both cylinder gaskets (9) and foot
valve ball (11). Remove cylinder O-ring (8) from cylinder
(12).
24
13,42 cm2
10,2 cm
137,32 cm3; 0,137 liter
10979 cm3; 11 liter)
900 Series
75:1 (SC75)
The following procedure must only be
performed by a Wagner Authorized Service
Center.
use of non-Wagner manufactured service parts
may void warranty.
Never use a pipe wrench, pliers, etc. on the
chrome part of hydraulic, air or fluid section
rod.
SuperCoat