D439E Service Manual 2. Engine Mechanical System (D439E)
113
Disassembly
1. If the clearance between the end of the drive (1)
and driven gear (2) and oil pump case exceeds
the limit, replace those parts.
Clearance between oil pump case and gear tooth
end
Standard : 0.10~0.19 mm
Limit : 0.2 mm
2. Measure the difference between the drive and
driven gears tooth end height and the oil pump
case depth. If the measurement exceeds the limit,
replace the parts.
Difference between oil pump case and gear tooth
end height.
(Sinkage)
Standard : 0.01~0.07 mm
Limit : 0.18 mm
3. Measure the clearance between driven gear and
driven shaft. If the clearance exceeds the limit,
replace the parts.
Clearance between driven gear and driven shaft
Standard : 0.04~0.07 mm
Limit : 0.15 mm
4. Measure the play of drive gear end, if the
measurement exceeds the limit, replace the parts.
Standard play of drive gear end : 0.03 mm
5. Check the opening pressure of relief valve,
replace the parts if they exceeds the limit.
Standard of relief valve opening pressure : 10~12
kg/cm
2
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