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4. Place diaphragm back disc and new diaphragm onto
each connecting rod. The connecting rods should ex
-
tend above the diaphragms when correctly installed
(Fig. 11). Position nylon washer and washer on each
connecting rod and then thread hex bolt into connecting
rod. Torque bolt to 60 ft–lb (81 N–m).
5. Make sure that pump casings align and then secure
pump casing assembly by torquing five (5) bolts to 32 ft–
lb (43 N–m).
6. Secure diaphragm covers to pump using hex bolts (4
per cover). Torque bolts to 55 ft–lb (75 N–m).
7. Place new o–rings and valves into diaphragm cover
openings (Fig. 12). Inlet valves should be installed with
the spring down into the cover and should be on the
same side of the pump as the crankshaft grease fitting.
Outlet valves should be installed with the spring up and
away from cover and should be on the same side of the
pump as the crankshaft extension.
8. Place valve chamber over valves noting orientation
of chamber inlet and outlet. Secure valve chamber with
two (2) hex bolts. Torque bolts 60 ft–lb (81 N–m).
2
1
Figure 11
1. Diaphragm 2. Connecting rod
2
2
1
3
Figure 12
1. Inlet (suction) 3. Outlet valve
2. Inlet valve
Spray System
Page 3 – 14
Workman 200 Spray System