4
Maintenance and adjustment
60
4. Check and adjust the clearances of
numbers 1, 2, 3 and 5 valves.
5. Replace the rocker cover, using a new
gasket.
FUEL SYSTEM
WARNING
Diesel fuel under pressure can pen-
etrate the skin causing serious injury.
• DO NOT use your hand to check for
leaks. Use a piece of cardboard or
paper to search for leaks.
• Stop the engine and relieve pres
-
sure before disconnecting pipes.
• Tighten all connections before
starting the engine.
• If any fluid is injected into the skin
obtain medical attention immedi-
ately.
The utmost care must be taken to keep
fuel clean and to service the fuel system
components at the recommended intervals.
For fuel handling and storage see page
82.
Change the fuel filter element eve-
ry 500 hours.
1. Turn off the engine.
2. Clean the outside of the filter assem-
bly.
3. Drain the filter by unscrewing the tap
(1).
4. Turn the filter element (2) anticlock-
wise by wrench (3) and remove it.
Fig. 15:
3
2
4
1
5. Discard the element (2).
6. Reassemble with new filter element
and a new gasket (4).
7. Remove air from the fuel system and
check for leaks.
Removing air from the fuel system
If at any time air enters the fuel sys-
tem, either due to fuel system servicing,
running out of fuel, tractor standing idle
for a considerable time or difficulty with
starting, the following procedure must be
used to remove air from the
NOTE
If air removal temporarily eliminates
the problem, but it occurs again, you
must fully check and test all fuel lines
and connections. Loose fuel connections
and gasket surfaces, or damaged fuel
lines, can allow air to enter the system
without showing any apparent leakage.
With a clean unrestricted element, air
leaks will usually occur on the suction
side of the system between the fuel tank
and the fuel lift pump. With a badly re-
stricted fuel filter element installed, the
transfer pump portion of the injection
pump (in its attempt to obtain fuel) may
also pull air into the system. Retighten,
but DO NOT overtighten, all fuel connec-
tions and replace the fuel filter element
as necessary.
Summary of Contents for ITM 950
Page 1: ...Iran Tractor Industrial Group OPERATOR INSTRUCTION BOOK Tractor Models ITM 950...
Page 3: ......
Page 5: ......
Page 24: ...1 General information 17 The location of safety decals...
Page 25: ...General information 1 18 The location of general decals...
Page 39: ......
Page 91: ......
Page 99: ...5 Specifications 92 Fig 1 Panel harness...
Page 100: ...5 Specifications 93 Fig 2 Engine harness...
Page 101: ...5 Specifications 94 Fig 3 Front harness...
Page 102: ...5 Specifications 95 Fig 4 Rear harness...
Page 103: ...Notes 96...
Page 104: ...Notes 97...
Page 105: ...Notes 98...