Doosan DE08TS User Manual

DE08TS Diesel Engines Maintenance of Major Components
Oil pump
1. Disassembly
a. Disassembly of oil pump drive gear
• Unscrew the screw and disassemble the oil
relief valve.
• Unfold the washer for the oil pump drive gear
fixing nut and remove the nut.
• Disassemble the drive gear.
b. Remove the oil pump cover fixing nuts and dis-
assemble the oil pump cover.
The oil pump cover is fixed with the two dowel
pins.
c. Disassemble the drive gear and driven gear.
2. Inspection and correction
a. With steel rule and feeler gauge, measure the axial
end play of the oil pump gear. Replace if the mea-
sured value is beyond the limit.
b. With a feeler gauge, measure the amount of back-
lash between the oil pump drive gear and driven
gear. Replace if the measured value is beyond the
limit.
c. Measuring clearance between drive shaft and
bushing
• Measure the outside diameters of the drive shaft
and driven shaft, and replace if the measured val-
ues are less than the limit (N16.95mm)
• Measure the inside diameter of the pump body
bushing to determine the clearance between the
bushing and shaft, and compare the measured
value with the standard value to determine
whether to replace or not.
3. Reassembly
a. For reassembly, reverse the disassembly
sequence.
EQM4009I
EQM4008I
Steel plate
Feeler gauge
EQM4007I
EQM4006I
73
End play limit 0.025 ~ 0.089 mm
Backlash limit 0.50 ~ 0.64 mm
Standard N 16.95 ~ N 16.968 mm
Clearance 0.032 ~ 0.077 mm

Doosan DE08TS Specifications

General

Brand	Doosan
Model	DE08TS
Category	Engine
Language	English