Tennant 92 GR, Руководство оператора

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3-65553
92GR MM188 (11---87)
Tighten injectors evenly to 52 ft lb (70 Nm).
Injectors should be taken out only if engine is
malfunctioning as outlined below:
A. Misfiring
B. Knocking in one (or more) cylinders
C. Engine overheating
D. Loss of power
E. Smoky exhaust (black or white)
F.Increased fuel consumption
The faulty injector or injectors may be located by
loosening the line fitting nut on each, in turn, with the
engine running at a fast idle. This allows the fuel to
escape and not enter the cylinder. The injector least
affecting the engine performance should be removed
from the cylinder head and reconditioned or
replaced.
CAUTION: Keep hands and face from coming into
contact with atomizer spray, as the working pressure
will cause fuel oil to penetrate the skin.
NOTE: No attempt should be made to adjust the
injection pressure without a proper testing pump and
pressure gauge. It is impossible to adjust the setting
of the injector with any degree of accuracy without
proper equipment.
WARNING: Do not start the engine with
loose injector securing nuts; this may result
in the injector flying out.
PRIMING THE FUEL SYSTEM
Priming is necessary on initial installation of the fuel
injection system, after any subsequent removal, or if
the system was drained by running out of fuel.
Before priming and venting, ensure that the outside
of the vent screws and surrounding area is
thoroughly clean to prevent dirt and foreign matter
entering the system.
NOTE: Electrical equipment such as starters should
be shielded during priming to prevent fuel entry.
Carry out steps 1 and 2 while operating the fuel lift
pump priming lever.
1. Operate the fuel lift pump priming lever and
loosen the filter outlet connection until fuel
flows free of air.
A
B
C
D
01475
INJECTION PUMP VENTS
A. Injection Pump
B. Top Vent Valve
C. Fuel Pump Inlet
D. Governor Housing Vent Connection
2. Continue operating the fuel lift pump priming
lever while loosening the top vent valve and the
vent screw on the governor housing. When fuel
flows free of air, tighten the connections. Stop
operating the priming lever and place it in the
vertical position.
NOTE: Leaving the priming lever in the horizontal
position will lock the pump action stopping the fuel
supply.
3. Loosen any two injector high pressure pipe
nuts at the injector end. Set the accelerator to
the fully “open” position and ensure that the
stop control is in the “run” position. Crank
engine until fuel is free of air bubbles. Tighten
nuts.
NOTE: The bleeding operation may take a
considerable amount of cranking with the starter to
purge all air. It is important that the battery be in good
operating condition when bleeding.
If the engine will not start after bleeding, or any other
time, it may be an indication of a low battery charge.
If the voltage to the fuel shutoff solenoid falls below 8
volts, the valve will shut off fuel to the engine. This
may happen during cranking if the battery charge is
low. The condition may not be readily apparent since
cranking speed might still be good.
4. Start the engine.