Toro Multi Pro 5600 Service Manual page 136

3. Install three (3) shorter (30 mm) and two (2) longer
(55 mm) bolts into pump casing assembly (Fig. 10).
Thread hex nuts onto bolts but do not fully tighten.
Check that crankshaft turns freely.
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 (80 N–m).
5. Make sure that pump casings align and then secure
pump casing assembly by torquing five (5) bolts to 32 ft–
lb (44 N–m).
6. Install diaphragm covers to pump using hex bolts
and nuts (4 per cover). Torque nuts to 55 ft–lb (75 N–m).
Note: Some pumps may use hex bolts that thread into
the pump casing to secure diaphragm covers.
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. Outlet valves should be
installed in with the spring up and away from cover.
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 (80 N–m).
Spray System
2
1. Diaphragm
1. Inlet (suction)
2. Inlet valve
Page 6 – 14
Figure 11
2. Connecting rod
1
3
2
2
Figure 12
3. Outlet valve
1
Multi Pro 5600