Toro 05144SL Rev A Line Painter 1200 Service Manual

Paint Circuit
The Line Painter 1200 paint circuit uses a positive dis-
placement  diaphragm pump  to  move  paint from  the
paint tank to the spray nozzle. The spray pump is a self–
priming diaphragm pump that has a dry crankcase.
Once to the pump, the fluid (paint) is pushed by the up-
ward stroke of  the pump’s diaphragm  to the pressure
side of the spray system through hoses, control valves
and the spray nozzle. Pump design prevents fluid from
being drawn back into the pump. Maximum pressure in
the system is limited by an adjustable relief valve located
in the pump.
The engine drives the spray pump indirectly through pul-
leys and a V–belt. The  spray pump belt is always ten-
sioned by a backside idler pulley so the pump is being
rotated whenever the engine is running.
An adjustable pressure regulator is used by the operator
to set paint  circuit pressure on the  Line Painter 1200.
Flow in excess of the regulator setting is directed back
to the paint tank via a ball valve  (in the paint position).
This return flow is used for paint tank agitation. An op-
tional pressure  gauge  (if equipped)  indicates system
pressure.
When the pump is rotated, the downward stroke of the
pump’s diaphragm creates suction to allow fluid (paint)
to be drawn from the paint tank to the pump via hoses,
a ball valve (in the paint position) and a 40 mesh screen
filter. Pump  design prevents fluid  from being pumped
back into the suction line.
A mechanically actuated spool valve is used to turn the
spray nozzle on/off. Spool valve shift  occurs when the
operator depresses or releases the paint control lever.
Line Painter 1200
Page 5 – 5
Paint System
Product Specification
CategoriesLawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals
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- 92 pages
Document TypeService Manual
LanguageEnglish
Product BrandToro. Customer Service Representatives are available by phone: Monday - Friday 7:30 a.m. to 9:00 p.m. (CDT) - Saturday 8:00 a.m. to 8:00 p.m. (CDT) - Sunday 10:00 a.m. to 8:00 p.m. (CDT)
Canada 1-888-225-4886 USA 1-888-384-9939, Lawn Mower
Document File TypePDF
Publishertoro.com
Wikipedia's PageToro Company
CopyrightAttribution Non-commercial
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