Doosan D55C-5 - Page 108

D439E Service Manual 2. Engine Mechanical System (D439E)
106
Service Standard
Item
Nominal value([]
indicates base
diameter)
Limit
Corrective
action and
remarks
At idle 1~5 kg/cm
2
0.5 kg/cm
2
Adjust
Oil pressure
(oil temperature
70~90℃)
At max speed 3~5 kg/cm
2
2 kg/cm
2
Adjust
Oil pump case and gear teeth
end clearance
0.10~0.9 0.2 Replace
Difference between oil pump
case depth and gear height
(sinkage)
0.01~0.07 0.18 Replace
Driven gear to driven shaft
clearance
[20]0.04~0.07 0.15 Replace
Drive gear end play 0.03
Oil pump
Relief valve opening pressure 10~12 kg/cm
2
Replace
Bypass valve pressure 3.5~4.5 kg/cm
2
Replace
Oil cooler
Opening pressure of regulator
valve
5.0~7.0 kg/cm
2
Replace
Unit : mm
Tightening Torque
Item (Diameter x length)
Size
OD x pitch (mm)
Nm Kgf.m
lb·ft
Oil strainer flange bolt (8x16) - 18.6~27.4 1.9~2.8 13.8~20.4
Oil strainer flange bolt (8x40) - 18.6~27.4 1.9~2.8 13.8~20.4
Oil pan mounting flange bolt (8x12) M8x1.2 18.6~27.4 1.9~2.8 13.8~20.4
Oil level gauge mounting flange bolt
(8x16)
- 18.6~27.4 1.9~2.8 13.8~20.4
Oil pan drain plug M14x1.5 34.3~39.2 3.5~4.0 25.4~29.1
Oil filter element M26x1.5 19.6 2.0 14.5
Oil cooler bypass M16x1.5 19.6 2.0 14.5
Oil cooler relief valve M16x1.5 19.6 2.0 14.5
Oil cooler drain plug M14x1.5 34.3~44.1 3.5~4.5 25.4~32.7
Oil cooler mounting flange bolt - 18.6~27.4 1.9~2.8 13.8~20.4
Oil line flange bolt - 7.8~11.8 0.8~1.2 5.8~8.7
Oil line eye bolt - 18.6~22.5 1.9~2.3 13.8~16.7
Idler gear oil supply pipe - 58.8~83.3 6.0~8.5 43.6~61.8
Turbo oil pipe eye bolt - 18.6~22.5 1.9~2.3 13.8~16.7
Turbo oil pipe flange bolt (8x16) - 18.6~27.4 1.9~2.8 13.8~20.4
Oil pump mounting flange bolt (8x55) - 18.6~27.4 1.9~2.8 13.8~20.4