M 05.00 Piston With Connecting Rod; M 05.10 Piston And Piston Rings - Hatz Diesel 1D30 S Workshop Manual

M 05.00 Piston with connecting rod

M 05.10 Piston and piston rings

- 20 -
General:
1 D 80 - 81 only!
Pistons are different in their combustion
bowl cavity.
1 D 40 only!
Pistons available for two different compres-
sion ratios.
Preparations:
Ref.: M-Disassembly cross reference
scheme.
Dismantling:
– Remove circlips 1.
– Remove (push) gudgeon pin 2 and lift off
piston 3.
– Remove piston rings.
For removal use tool - 20 -
Inspection / repair:
– Check piston rings for wear or any other
damage.
– Check piston rings for axial clearance in
piston ring grooves.
– Clean piston ring grooves and piston
rings if necessary.
– Check piston rings for wear in connec-
tion with wear specifications.
Ref.: Chapt. M 06.00
3
1D . . / 03.06
Assembly:
– Place piston rings into their correspond-
ing grooves.
Observe TOP marks on piston rings !
– Offset the piston ring gaps by approxi-
mately 120° to one each other.
– Place piston 3 onto conrod and insert
gudgeon pin 2 (ensure that the combus-
tion cavity in the piston crown faces to-
wards flywheel side / injector position).
– Ensure circlips are correctly seated !