Doosan DV11 - Maintenance Specification Table

DV11
Operation and Maintenance
206
Appendix
Printed in Mar. 2005 PS-MMA0608-E1A
z Maintenance specification table
(unit : mm)
Group Part Inspection item
Stand value
for assembly
Limit
for use
Correction Remark
Inside diameter of
cylinder liner
φ127.990~φ128.010 φ128.122
Replace liner
Measure unworn
portion beneath
the rim of the
upper side
Liner’s roundness &
columness (upper)
0.005 -
From top up to
168mm
Liner’s roundness &
columness (lower)
0.008 -
From bottom up to
85mm
Amount of liner
projection
0.04 ~ 0.08 -
Measure at upper
side of cylinder block
The flatness of upper
surface of cylinder block
0.03 -
Correct with a
surface grinder
Referenced
length : 150mm
Cylinder
block &
liner
Hydraulic test for 1
minute (kg/cm
2
)
4 -
Replace if
leaky
Temperature
70°C
Intake -0.39 ~ -0.41 0.55
Valve seat
depression
Exhaust -0.39 ~ -0.41 0.55
Replace valve
seat
Depression of valve
from lower face
of cylinder head
Cylinder head height 116.9 ~ 117.1 116.4
Replace
cylinder head
The flatness of lower
surface of cylinder head
0.08 0.1
Thick of cylinder head
gasket(at assembly
status)
1.215 ~ 1.285 -
Cylinder
block
Cylinder
head &
valve
Hydraulic test for 1
minute (kg/cm
2
)
4 -
Replace if
leaky
Temperature 70°C
Outer diameter of piston
φ127.739~φ127.757
- Replace liner
Measure at 56.8 mm
away from piston
head(long diameter)
Clearance between
piston and liner
0.233 ~ 0.271 0.35
Replace one
worn more
Inner diameter of
piston pin
φ46.010~φ46.016
- Standard diameter
Top ring 3.5 -
2nd ring 3.040~3.060 -
Width of
piston ring
grooves
Oil ring
4.020~4.040 -
Replace piston
if groove width
is beyond
specified value
Measure
at 125mm
of top ring groove
Piston projection from
cylinder block upper
surface
0.0085~0.3765 - Must exist
Measure unworn
portion beneath
the rim of
the upper side
Piston
Permissible weight
difference of each
piston
50g 50g↓
Replace
piston
Top ring 3.34~3.36 -
2nd ring 2.975~2.990 -
Width of
piston ring
Oil ring 3.97~3.99 -
Replace ring
Major
moving
parts
Piston
ring
Piston ring Top ring
0.35~0.55 1.5 Replace ring Standard gauge