Troubleshooting
ZE59858,0000075 -19-23SEP14-11/11
Symptom
Problem
Solution
Worn valve guides or stems
Inspect and measure valve stems and
valve guides; repair as required. See
your authorized John Deere engine
distributor or servicing dealer.
Piston ring grooves excessively worn
Remove and inspect pistons. See
your authorized John Deere engine
distributor or servicing dealer.
Piston rings sticking in ring grooves
Remove and inspect pistons. See
your authorized John Deere engine
distributor or servicing dealer.
Insufficient piston ring tension
Remove and inspect pistons. See
your authorized John Deere engine
distributor or servicing dealer.
Piston ring gaps not staggered
Remove and inspect pistons. See
your authorized John Deere engine
distributor or servicing dealer.
Front and/or rear crankshaft oil seal
faulty
Replace oil seals. See your authorized
John Deere engine distributor or
servicing dealer.
Undercharged Electrical System
Excessive electrical load from added
accessories
Remove accessories or install higher
output alternator. See your authorized
John Deere engine distributor or
servicing dealer.
Excessive engine idling
Increase engine rpm when heavy
electrical load is used.
Poor electrical connections on battery,
ground strap, starter, or alternator
Inspect and clean as necessary.
Defective battery
Test batteries.
Defective alternator
Test charging system.
Battery Used Too Much Water
Cracked battery case
Check for moisture and replace as
necessary.
Defective battery
Test battery.
Battery charging rate too high
Test charging system.
Batteries Will Not Charge
Loose or corroded connections
Clean and tighten connections.
Sulfated or worn-out batteries
Replace batteries.
Stretched belt or defective belt
tensioner
Adjust belt tension or replace belts.
032715
PN=135
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 ...