Yanmar 6CXM-GTE, Руководство по обслуживанию

Страница: 91 / 132

- 3-43-3 -
3.11.9 Reassembly of fuel injection pump
(1) Preparation
1) After inspection, arrange and clean all parts.
2) Prepare the parts for replacement before starting
assembly.
(2) Assembly
1) Install the governor case to the pump housing.
2) Fit the bearings to both ends of the camshaft. Place the
pump housing upside down and insert the camshaft in
the housing together with the middle bearing.
3) Provisionally tighten the middle bearing with hex. hol-
low set bolt.
4) Provisionally install the camshaft support.
Sure to use the standard thickness shim.
5) Tighten the camshaft support with four screws.
6) Tap both ends of the camshaft with a mallet to seat the
bearings.
Turn the camshaft by hand and feel its rotating resis-
tance (preload). If it is too heavy, adjust it by adding
shims. Remove the shim if it is too light.
Note:
Always replace gaskets, packing and O-rings
with new ones.
Note:
Apply grease to the middle bearing to prevent it
from falling out before installation.
Coat the camshaft and oil seal with clean lube
oil to prevent damage to the lip of the oil seal.
Standard thrust clearance
of camshaft
0.01
㨪
0.05mm
Note:
Do not install the O-ring at this stage.
Coat the camshaft and oil seal with clean lube
oil to protect the oil seal from damage.
Take care that the shims do not stick in the O-
ring grooves.