Toro Multi Pro 5800 Service Manual page 197

Removal (Fig. 11)
IMPORTANT: Make sure to remove and neutralize
chemicals from tank and other components before
disassembly. Wear protective clothing, chemical re-
sistant gloves and eye protection during repair.
1. Park machine on a level surface, stop engine, en-
gage parking brake and remove key from the ignition
switch.
2. Drain spray tank.
3. Label disconnected hoses for proper installation af-
ter repairs are completed.
4. Remove pressure relief valve from spray tank using
Figures 11, 12 and 13 as guides. Discard all removed O--
rings and gaskets.
Installation (Fig. 11)
NOTE: Coat all O--rings with vegetable oil before instal-
lation to reduce the chance of damage during assembly.
1. Install pressure relief valve using Figures 11, 12 and
13 as guides. Replace all removed O--rings and gas-
kets.
2. Check spray system for leaks. Repair all leaks be-
fore returning the sprayer to service.
Pressure Relief Valve Testing
To test the operation of the pressure relief valve, follow
the following steps:
A. Have machine on a level surface with engine off
and parking brake engaged. Make sure that traction
pedal is in the neutral position. Close the agitation
supply ball valve.
B. Have a person in the operator seat to control the
spray system and a second person near the pres-
sure relief valve.
C. Have operator start the engine, turn spray pump
switch ON and turn agitation switch ON.
D. While second person listens for pressure relief
valve to open, have the operator slowly increase the
application rate while watching the pressure gauge.
Pressure gauge should open when system pressure
reaches approximately 220 PSI (1500 kPa).
Multi Pro 5800
1
1. Spray pump
1
6
7
2
8
1. Tee fitting
2. O- -ring
3. Elbow hosebarb
4. Hose clamp
Page 6 - - 19
2
Figure 12
2. Pressure relief valve
3
2
4
5
4
2
Figure 13
5. Pressure relief hose
6. Straight hosebarb
7. Fork
8. Pressure relief valve
Spray System