JAC Motor truck HFC1042K2(D800) 4DA1 SERIES SHOP MANUAL – PDF DOWNLOAD

Description

JAC Motor truck HFC1042K2(D800) 4DA1 SERIES SHOP MANUAL – PDF DOWNLOAD

FILE DETAILS:

JAC Motor truck HFC1042K2(D800) 4DA1 SERIES SHOP MANUAL – PDF DOWNLOAD

Language :English
Pages :517
Downloadable : Yes
File Type : PDF

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DESCRIPTION:

JAC Motor truck HFC1042K2(D800) 4DA1 SERIES SHOP MANUAL – PDF DOWNLOAD

Foreword

• This shop manual was prepared as reference to properly carry out servicing and maintenance on JAC vehicles. All the maintenance data in this manual is based on the model HFC1042K2 ( D800/D801). And it also can be as reference for the other models listed in the Chapter “General”.
• Their main common configurations are as follows: HFC4DA1(HFC4DA1-1) engine; JAC MSB-5M transmission, hydraulic brake and JAC new model cabin. All information in this manual is the latest data and status of the vehicle at the time of publishing for your reference.
• However, due to technological advance or product updating etc., all contents in this manual are subject to modification. We reserve the right of modification of this manual without prior notice. Please inform Customer Service Department of JAC International if there is any mistake, and you will be highly appreciated.

TABLE OF CONTENTS:

JAC Motor truck HFC1042K2(D800) 4DA1 SERIES SHOP MANUAL – PDF DOWNLOAD

Maintenance 5
11 Diagnosis and troubleshooting 5
111 Start problems 5
112 Unstable idle speed 7
113 Insufficient power 8
114 High fuel consumption 9
115 High oil consumption 10
116 Engine overheating 10
117 White smoke coming out of engine exhaust 10
118 Black smoke coming out of engine exhaust11
119 Low oil pressure11
1110 Abnormal engine noise 11
1111 Engine cooling problem 12
12 Data and specifications 20
121 Data and specifications 20
122 Engine cooling 21
123 Starting system 21
124 Charging system 22
13 Maintenance standards 22
131 Engine mechanical system 22
132 General terms for diesel performance 24
14 Maintenance work 26
141 Air filter 26
142 Lubricant system 27
143 Fuel system 28
144 Cooling system 30
145 Drive belt adjustment 32
146 Engine control (governed speed, valve clearance, injection timing, compression pressure)
33
15 Tightening torque 39
151 Torque for cylinder head, cylinder head cover and rocker shaft support 39
152 Torque for crankshaft, bearing cap, connecting rod bearing cap, crankshaft damper pulley,
flywheel and oil pan 41
153 Torque for timing pulley chamber, timing pulley, timing gear and camshaft race 42
154 Engine fuel system 42
155 Torque for cooling system and lubricant system 43
156 Torque for intake manifold, exhaust manifold and exhaust pipe 44
157 Engine electrical system 45
158 Torque for engine mounting bracket 46
16 Special tools 47
2 Engine mechanical system 49
3
21 Cylinder head 49
22 Valve spring, valve guide oil seal, valve guide and push rod 56
23 Camshaft and tappet 64
24 Rocker arm assembly 72
25 Oil pump 75
26 Crankshaft 80
27 Piston and connecting rod 95
28 Cylinder block 106
34 DA1 Series Engine 118
31 General118
32 Right support of engine119
33 Left support of engine 121
34 Air-intake manifold 123
35 Exhaust manifold 125
36 Oil cooler 127
38 Cylinder head cover 130
39 Rocker shaft assembly 131
310 Valve stem oil seal and valve spring 134
311 Timing gear 138
312 Cylinder head assembly and gasket 146
313 Oil pan 157
314 Oil pump assembly 160
315 Piston, Piston ring and connecting rod 164
316 Camshaft and tappet 177
317 Crankshaft front oil seal 197
318 Crankshaft rear oil seal 200
319 Crankshaft and main bearing 207
4 Engine cooling system 229
41 General 229
42 Water pump 232
421 On-vehicle repair 232
422 Single-piece repair 236
43 Thermostat 239
44 Radiator 241
45 Drive belt adjustment 244
5 Fuel system 246
51 General 246
52 Fuel filter assembly 250
53 Fuel injector 253
54 Injection pump assembly 258
55 Fuel system related parameters 266
56 Fuel tank 267
57 Fuel lever gauge 269
6 Starting system（To mention in a reference） 270
61 General 270
4
62 Starting circuit 271
63 Starter motor 272
7 Intake/exhaust system 281
71 General 281
71 Air filter 282
72 Exhaust pipe and charger assembly 284

S.M 24/2/2025