Injection Pump Test
Calibration of fuel delivery volumes, pressure and dis•
tribution between pump barrels should be performed by
a professional diesel engine service shop. Special test
fixtures and equipment are required.
D. Put the throttle control in the FAST position. Turn
the ignition key to the START position to crank the
engine. Observe the nozzle.
It is possible to determine if the fuel injection pump
requires service through a process of elimination using
other fuel system tests. The following test procedure will
help isolate fuel system difficulties.
The injection pump forces fuel from the noz•
zle under extremely high pressure. Always
point the nozzle tip away from yourself and
any other personnel. Contact with the fuel
stream, even though it appears to be a mist
can cause fuel to penetrate clothing and skin.
If fuel is injected into the skin get proper
medical attention from a doctor immediately.
A serious infection or other reaction can de•
velop if the injury is not properly treated.
Tighten all adapter fittings to prevent leaks. If
a leak is suspected, use a piece of cardboard,
not your hands to search for a leak.
1. Make sure that fuel is being supplied to the injector
pump. (See Fuel Pump Test in this section and Bleeding
Air From the Fuel System in the Fuel System Repairs
section of this section.)
2. Check the operating condition of the injection nozzles
to make sure that the injection pressure is correct. (See
Injection Pressure Test in this section of the book.)
3. Make sure that the injection pump is providing suffi•
cient fuel pressure to operate the nozzle by performing
the following procedures:
If the nozzle produces an atomized mist of fuel the
injector pump for that cylinder is operating properly.
Failure of the nozzle to inject fuel can indicate a injection
pump cylinder that is not operating correctly.
A. Loosen the fuel delivery pipe from the number one
nozzle.
B. Remove the nozzle from the cylinder head.
5. Repeat the test for the other cylinders.
C. Connect the fuel delivery pipe to the nozzle as•
sembly so the tip of the nozzle is pointed away from
the engine. Tighten the fitting securely.
Testing
Page 4 - 22
Groundsmaster® 300 Series
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
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| Tags | Toro Groundsmaster 300, Toro Groundsmaster 328 D, Toro Groundsmaster 92801SL |
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| Document Type | Service Manual |
| Language | English |
| Product Brand | Toro. Customer Service Representatives are available by phone:
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| Wikipedia's Page | Toro Company |
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(2 votes, average: 5 out of 5)
Lawn and Garden readers have rated Toro 92801SL Rev I Groundsmaster 300 Series Groundsmaster 328 D Service Manual 5.0 out of 5.0 based on 2 product reviews. Need 328D. Manual pdf. Will rate after finding manual
t has been a very reliable machine but getting parts is hard and not cheap to buy , generic parts has been cost effective and reliable , i am unable to get a wiring circut diagram for this unit as most problems are electrical problems