Troubleshooting
Continued on next page
ZE59858,0000075 -19-23SEP14-6/11
Symptom
Problem
Solution
Excessive thrust bearing clearance
Check and adjust thrust bearing
clearance. See your authorized John
Deere engine distributor or servicing
dealer.
High oil viscosity
Drain engine oil and refill with correct
viscosity engine oil
Turbocharger “Screams”
Leak in intake air system
Check air system for loose clamps,
damaged tubes, charged air cooler
leaks, and intake manifold gasket
leaks; repair as required. See
your authorized John Deere engine
distributor or servicing dealer.
Turbocharger Noise or Vibration
NOTE: Do not confuse the whine
heard during run down with noise
which indicates a bearing failure.
The whine heard during
turbocharger run down is
normal.
Bearings not lubricated (insufficient oil
pressure)
Determine cause of lack of lubrication;
repair as required. See your
authorized John Deere engine
distributor or servicing dealer.
Air leak in engine intake or exhaust
manifold
Check intake and exhaust manifold
gaskets and manifolds; repair as
required. See your authorized John
Deere engine distributor or servicing
dealer.
Improper clearance between turbine
wheel and turbine housing
Inspect turbocharger; repair/replace
as required. See your authorized John
Deere engine distributor or servicing
dealer.
Broken blades (or other wheel failures) Inspect turbocharger; repair/replace
as required. See your authorized John
Deere engine distributor or servicing
dealer.
Engine has reached Service Only
Soot Level
Auto Filter cleaning is disabled for an
extended period of time
Enable exhaust filter cleaning.
Frequent engine shut downs occurred
while auto cleaning was in process
Let engine run for 30 min to clean the
exhaust filter.
Interlock switches are not properly set
to allow DPF recovery/Regeneration
to occur
Machine must be stationary (Parked).
Engine speed must be above the
minimum setpoint. Any PTO driven
device must be shut off. Engine load
must be stable.
Engine Emits White Smoke
Engine compression too low
Determine cause of low compression
and repair as required. See your
authorized John Deere engine
distributor or servicing dealer.
032715
PN=130
Summary of Contents for DPT40-B
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Page 55: ...Introduction 032715 PN 8 ...
Page 59: ...Contents iv 032715 PN 4 ...
Page 196: ...Troubleshooting 65 29 032715 PN 149 ...
Page 221: ...Warranty DX EMISSIONS EPA 19 12DEC12 2 2 TS1721 UN 15JUL13 85 6 032715 PN 174 ...
Page 229: ...Warranty DX EMISSIONS CARB 19 01AUG14 8 8 RG26036 UN 24JUN14 85 14 032715 PN 182 ...
Page 235: ...Engine Registration IBC 2 032715 PN 188 ...
Page 238: ...Engine Registration IBC 5 032715 PN 191 ...
Page 239: ...Engine Registration IBC 6 032715 PN 192 ...
Page 240: ...saue Axial Piston Pumps and Motors Service Manual Series 90 CONTENTS ...
Page 326: ...saue 87 Series 90 Exploded View Parts Drawings 10 Notes CONTENTS ...
Page 329: ...2 Model 74624 and 74644 ...
Page 337: ...10 Model 74624 and 74644 Notes ...
Page 338: ...11 Model 74624 and 74644 Notes ...
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Page 386: ...www dexteraxle com OPERATION MAINTENANCE SERVICE MANUAL 600 8 000 lb Axles Related Components ...
Page 468: ...Service Record Date Service Performed Mileage ...
Page 469: ...Service Record Date Service Performed Mileage ...
Page 470: ...Service Record Date Service Performed Mileage ...