Doosan G20P-5, Service Manual, Page: 52 / 306

G424F(FE) Service Manual Chapter 3. Engine Mechanical System 50
Installation
Install or connect
Important
• Align the camshaft timing pulley mark with the
timing belt rear cover mark.
• Align the crankshaft timing pulley mark with the
oil pump case flange, in the no. 1 cylinder
combustion stroke.
1.
Timing belt
2.
Belt Tensioner adjustment: with a 6-mm Allen
wrench, so as to keep steady the Tensioner shaft,
loosen the Tensioner shaft attaching bolt until the
same becomes steady.
With a 6-mm Allen wrench, turn clockwise the
Tensioner installation shaft up to the “NEW”
marking point (± mm) (Detail B). The needle may
move from the right side up to the final adjusting
position. Tighten the bolt. For used timing belts,
follow the same procedure, but with the belt
adjustment in the “USED” position.
This change is suggested due to the used belt
presenting a different course of action regarding
the new belt.
3.
Timing belt front cover.
4.
Timing belt front cover attaching bolts, with a 10-
mm socket wrench and handle.
5.
V pulley belt automatic Tensioner; see “V Pulley
Belt Automatic Tensioner – Installation”, in this
Section.
6.
Crankshaft pulley; see “Crankshaft Pulley –
Installation”, in this section.