M 14.30 Injection Pump - Hatz Diesel 1D30 S Workshop Manual

M 14.00 Fuel-injection equipment

M 14.30 Injection pump

- 28 - 33 -
General:
The replacement of crankcase and / or
camshaft requires a mandatory adjustment
for timing and fuel quantity.
For any field repair work i.e. replacement
of injection pump only, a standard replace-
ment of the injection pump would be within
the ex-factory adjusted values as long as
no changes in timing (shims) and / or fuel
setting (extra fuel device) have been done.
Final adjustments require special adjust-
ments in connection with timing and fuel
quantity (power setting).
The injection pump shims change the timing.
0.1 mm change in shim thickness changes
the timing by approx. 1°.
Shim.-pack Gaskets/Paper
(mm) mm
0.1
0.2
0.3
0.4 0.2 + 0.2
0.5 0.3 + 0.2
0.6 0.3 + 0.3
0.7 0.2 + 0.2
0.8 0.3 + 0.2
0.9 0.3 + 0.3
1.0 0.2 + 0.2
1.1 0.3 + 0.2
1.2 0.3 + 0.3
1.3 0.2 + 0.2
1.4 0.3 + 0.2
1.5 0.3 + 0.3
1.6 0.2 + 0.2
1.7 0.3 + 0.2
1.8 0.3 + 0.3
3
1D . . / 03.06
Shim/Steel
(mm)
0.1 –
0.2 –
0.3 –
–
–
–
0.3
0.3
0.3
0.6
0.6
0.6
0.9
0.9
0.9
1.2
1.2
1.2
Preparations:
Ref.: M-Disassembly cross reference
scheme.
Functional check:
Before dismantling the injection pump a
functional test should be carried out to
check the condition in general as follows:
– Remove pressure spring inside of extra
fuel device allowing the fuel stop pin to
drop into position of normal operation.
Ref.: Chapt. M 12.00
– Bring speed control lever to FULL-posi-
tion.
– Place test nozzle - 28 - onto injection
pump.
– Crank engine and check spray pattern
for proper atomizing i.e. it is proven that
the injection pump (pump element and
delivery valve) is in good condition.
ATTENTION:
Keep your hands away from the nozzle
spray. The jet of a spraying nozzle can
cause blood poisoning.
– After testing remove test nozzle.
– Check timing, use tool - 33 -
– Reassemble extra fuel device.