M 05.20 Connecting Rod - Hatz Diesel 1D30 S Workshop Manual

M 05.00 Piston with connecting rod

M 05.20 Connecting rod

–
General:
Connecting rods can be fitted either way
as far as matching-No. and engine speed
is concerned.
The broaching cut as well as an additional
pin location are the basis for the location
top to bottom.
Don't interchange parts i.e. matching-Nos.
have to correspond !
As of series stand: 1D30.17, 1D31.15,
1D40.18, 1D41.15, 1D50.10, 1D60.20,
1D80.20, 1D81.13, 1D90.10, 1D90V/W.10:
Introduction of connecting rods with even
matting face and fitting bolts.
Pay attention that during assembly all
matching numbers are on top of each
other.
Preparations:
Ref.: M-Disassembly cross reference
scheme.
Dismantling:
– Unscrew connecting rod bolts 1.
– Remove connecting rod 2/3 separately
from top and bottom.
– Remove big end bearing 4.
Inspection / repair:
– Check big end bearing as well as basic
bore in connecting rod and small end
bushing for wear or any other damage.
NOTE:
All dimensions measured in fitted condition
at 20 ± 10°C / 68 ± 18°F.
Connecting rod bolted, bolts set to tighten-
ing torque !
– Check connecting rod for possible skew-
ness.
Don't realign !
3
1D . . / 03.06
– Remove (press) small end bush 5 if nec-
essary.
Assembly:
– Press small end bushing 5 centrally into
small end. Ensure lubrication bores align !
– Place big end bearing 4 into connecting
rod.
– Moisten big end bearing and crankshaft
work pin with engine oil
(dont use molykote grease!)
– Install connecting rod 2/3 onto crank
journal.
Ensure matching-Nos. match !
– Install and tighten bolts 1 uniformly.
Torque to specification !
– Check connecting rod with bearing in
assembled condition for free movement
on crankshaft journal only after bolts are
torqued to specification.
– Turn engine loose before first start
(appr. 10 times)