Hyster H177, Периодическое техническое обслуживание

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Diesel Engine Fuel Injector Check 8000 SRM 707
TILT CYLINDER, LEAK CHECK
1. Put a capacity load on forks. Slowly tilt mast for-
ward. If the mast continues to slowly tilt forward
when the control valve is in the NEUTRAL posi-
tion, there are leaks inside the hydraulic system.
The maximum speed the mast is allowed to tilt
forward when there are internal leaks in the lift
system is 15 mm (0.6 in.) per 10 minutes (mea-
sured at rod in the tilt cylinder). The maximum
speed is measured when the hydraulic oil is 30 C
(86
F) . If the oil temperature is 60 C (140 F) , the
maximum speed the carriage can lower is 68 mm
(3 in.) per 10 minutes.
2. If the leak rate is greater than the specifications,
remove load from mast. Install a valve between
port at front of tilt cylinder and hydraulic line.
Put load on forks again. Close valve. If the mast
tilts slowly forward, the cylinder seals are leak-
ing.
3. If the mast does not move, open gate valve and
check movement again. If the mast moves for-
ward when the gate valve is open, check for leaks
in hydraulic lines and fittings. If no leaks are
found, the main control valve can be worn or
damaged. Remove load from forks when checks
are complete.
Charging Battery
If the battery becomes discharged and requires a
booster battery to start the engine, follow these
procedures carefully when connecting the jumper
cables:
1. Always connect positive jumper cable to positive
terminal of discharged battery and negative
jumper cable to negative terminal.
2. Always connect jumper cable that is the ground
cable last.
3. Always connect jumper cables to discharged bat-
tery before connecting them to booster battery.
Diesel Engine Fuel Injector Check
WARNING
Do not put your hands on fuel lines under pres-
sure. Fuel oil can be injected into your body by
the hydraulic pressure.
NOTE: The inspection and repair of fuel injectors re-
quire special tools and training. Many users have a
special repair service make repairs on fuel injectors.
Fuel injector nozzles that do not operate correctly
will cause black smoke in the exhaust, a decrease in
engine power, and an increase in engine noise.
NOTE: Additional information about the diesel
engine can be found in Perkins Diesel Engine,
Model 704-26 (UB) 600 SRM 706.
The engine will run roughly if a fuel injector is
dirty or damaged. To find which fuel injector has
a problem, operate engine at approximately 1000
rpm. Loosen and tighten connection to inlet of each
fuel injector in a sequence. When the connection to
the bad fuel injector is loosened, there will not be a
change in the engine speed.
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