Toro 05144SL Rev A Line Painter 1200 Service Manual

Flush Circuit
The Line Painter 1200 paint circuit uses a positive dis-
placement diaphragm pump to move fluid (water) from
the flush  (water) tank  through the spray  system. The
spray pump is a self–priming diaphragm pump that has
a dry crankcase.
Flow through the  flush circuit is used to  dilute and re-
move  paint from  the  ball valves,  screen  filter,  spray
pump,  regulator,  spool  valve,  spray  nozzle  and   all
hoses.
A one–way check valve is positioned between the flush
(water) tank  and the  ball valve (see  schematic). This
check valve prevents paint from entering the flush (wa-
ter) tank when  the paint/flush lever is moved  from the
paint position to the flush position and while the machine
is operated in the flush mode.
When the pump is rotated, the downward stroke of the
pump’s diaphragm creates suction to allow fluid (water)
to be drawn from the flush tank to the pump via hoses,
a one–way check valve, a ball valve (in  the flush posi-
tion) and a 40 mesh screen filter.
Once to the pump, the fluid (water) 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. Maximum pressure in the system
is limited by an adjustable relief valve located in the dia-
phragm pump.
NOTE:  If the flush system is not cleaned after use, di-
luted  paint  may  cause  check  valve and  associated
hoses to  become blocked. If the  check valve is  stuck
open, paint may enter  the flush (water) tank when the
paint/flush lever is moved from the paint position to the
flush position. If the check valve is stuck closed, the flush
system may not operate.
Flow in excess of the adjustable pressure regulator set-
ting is directed back to the flush (water) suction line via
a ball valve (in the flush position).
Line Painter 1200
Page 5 – 7
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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