Table Of Contents - FAW Jiefang Automotive 485 Operation & Maintenance Manual

(I) Right view of 4DW81-46 diesel engine ........................................................ 1
(II) Left view of 4DW81-46 diesel engine ......................................................... 2
(III) Front view of 4DW81-46 diesel engine ........................................................ 3
(IV) Vertical view of 4DW81-46 diesel engine ..................................................... 4
(V) Power output end of 4DW81-46 diesel engine ................................................ 5
Chapter I Technical Characteristics ....................................................................... 6
I. Technical parameters for 4DW(B00) diesel engine & its variants ........................... 6
II. Main technical data ................................................................................ 7
III. External characteristic curve of 4DW engines ................................................ 9
Chapter II Operation
I. Precautions .......................................................................................... 11
II. Operation .......................................................................................... 11
Chapter III Maintenance .................................................................................. 15
I. Daily care ........................................................................................ 15
II. Maintenance after running every 100h ........................................................ 15
III. Maintenance after running every 500h ..................................................... 16
IV. Storage ......................................................................................... 17
Chapter IV Structure .................................................................................... 18
I. Cylinder head ....................................................................................... 18
II. Engine body ....................................................................................... 20
III. Piston & connecting rod ........................................................................ 21
IV. Crankshaft & flywheel .......................................................................... 23
V. Camshaft ........................................................................................... 24
VI. Gear system ....................................................................................... 25
VII. Fuel & speed-governing system ............................................................ 26
VIII. Lubricating system .......................................................................... 31
IX. Cooling system ................................................................................ 33
X. Electrical system ................................................................................. 36
XI. Oil-pressure sensor & water-temperature sensitive plug ................................... 38
Chapter V Adjustment .................................................................................... 39
I. Adjustment of valve lash .......................................................................... 39
II. Adjustment of fuel-supply advance angle ..................................................... 39
III. Adjustment of fuel injector ..................................................................... 40
IV. Fuel injection pump .............................................................................. 41
Chapter VI Troubles & Troubleshooting ............................................................... 42
I. Engine does not start ................................................................................ 42
II. Abnormal engine-oil pressure .................................................................. 43
III. Smoke emitted in exhaust gas .................................................................... 43
IV. Insufficient power ................................................................................. 44
V. Abnormal sound .................................................................................... 45
CONTENTS
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