Yanmar YM155d User Manual

(1 ) Visual l nspection
Check rings for uneven wear or abnormal wear.
(2) lnspecting by Testing Equipment
NOTES:
(I)
To measure rhe pisron ring end clenrance, rhe cylinder liner is placed on a nufnce
table, rhe ring is fitred in rhe skirr section, and after mnking sure that rhe ring is nor
askew,
rhe end clenrnnce is mensured with a rhickness gauge.
! [Unir: in immll
(2)
When rhe pisron rings are being firred in rhe pisron, be sure rhat the marking on
the ring is facing up.
4. PISTON PIN
Item
(1) Visual Inspection
1.
2
Check to
make sure that there are no traces of
scoring, or uneven wear.
Piston ring
grooves
and ring
clearance
Piston ring end
clearance:-
No. 1
NO. 2
NO. 3
NO. 4
Standard dimension Replacement livit
1
[Refer to section on pistons]
(2) lnspecting by Testing Equipment
Testing equipment
Thickness gauge
0.0078-0.0157
(0.2-0.4)
[Unit: in imm)]
I,
Item [Sandatddime~ion( Replacement limit I Testing equipment ( IllMration
1
0.0591 11.5)
lll&tion
7

Yanmar YM155d Specifications

General

Brand	Yanmar
Model	YM155d
Category	Tractor
Language	English