Toro Multi Pro 1750 Service Manual page 205

IMPORTANT: Make sure to remove and neutralize
chemicals from spray components before disas-
sembly. Wear protective clothing, chemical resist-
ant gloves and eye protection during repair.
Removal (Fig. 17)
1. Park machine on a level surface, stop spray pump,
stop engine and engage parking brake. Remove key
from ignition switch.
2. Label boom spray valve manifold hoses for proper
installation. Disconnect hoses from boom spray valves.
3. Label spray valve wire harness leads for proper in-
stallation. Disconnect wire harness connectors from the
boom spray valves.
4. Remove pressure gauge tube from coupler on right
side of boom spray valve manifold assembly.
5. Remove flowmeter from boom spray valve manifold
(see Flowmeter Assembly in this chapter). Discard gas-
ket between flowmeter and manifold assembly.
6. Support boom valve manifold assembly and remove
four (4) flange head screws (item 4) and flange nuts that
secure boom spray valve manifold assembly to mount-
ing bracket. Remove boom spray valve manifold from
machine.
7. Remove bypass valves from manifold assembly.
The bypass valves are not repairable. Replace bypass
valves if necessary.
8. Disassemble boom spray valve manifold as needed.
Discard any removed O−rings and gaskets.
NOTE: See Spray Valve Service (Serial Number Below
315000000) in this chapter for disassembly and assem-
bly information of the valves and valve actuators (items
14, 15 and 16).
Multi Pro 1750
Installation (Fig. 17)
NOTE: Replace, do not reuse O−rings. Coat O−rings
with vegetable oil before installation to reduce damage
during assembly.
1. If boom spray valve manifold was disassembled, in-
stall new O−rings prior to assembly.
2. Install new O−rings and install bypass valves.
3. Secure boom spray valve manifold assembly to
mounting bracket and secure with four (4) flange head
screws (item 4) and flange nuts.
4. Position new gasket between flowmeter and boom
spray valve manifold. Install flowmeter to boom spray
valve manifold (see Flowmeter Assembly in this chap-
ter).
5. Using labels placed during removal, install hoses to
manifold assembly.
6. Install pressure gauge tube to coupler on right side
of boom spray valve manifold assembly.
7. Using labels placed during removal, install wire har-
ness connectors to valve actuators.
8. Operate spray system and check for leaks. Repair all
leaks before returning the sprayer to service.
Page 6 − 31 Spray System