Yanmar Fuel Injection Equipment Model YPD-MP2, YPD-MP4 Series Service Manual – PDF DOWNLOAD

Description

Yanmar Fuel Injection Equipment Model YPD-MP2, YPD-MP4 Series Service Manual

TABLE OF CONTENTS:

Yanmar Fuel Injection Equipment Model YPD-MP2, YPD-MP4 Series Service Manual

1 FOR SAFE SERVICING1
11 Warning Symbols 1
12 Safety Precautions 2
2 GENERAL INFORMATION 4
21 Outline of MP pump 4
22 Specifications 5
23 Outline of fuel injection pump6
24 Construction of MP-Pump 7
241 Fuel Injection Part 7
242 Governor Part8
243 Delivery Part 17
25 Function of Component18
251 FO Feed Pump 18
26 Timer Mechanism 20
261 Structure and Functions 20
27 CSD(Cold Start Device) 21
271 Cold Starting Advancer 21
3 DISASSEMBLY ,REASSEMBLY AND INSPECTION 22
31 Disassembly 22
311 Separating the pump body from the governor body22
312 Separating the governor weight CMP23
313 Disassembling the hydraulic head23
314 Separating hydraulic head CMP 25
315 Separating the cam shaft25
316 Disassembling the hydraulic head CMP 27
32 Disassembling the Governor28
33 Reassembly 29
331 Re-assembling the hydraulic head29
iii
332 Re-assembling Cam Shaft 30
333 Install the hydraulic head CMP 34
334 Assembling the Hydraulic Head 35
34 Re-assembling the Governor39
35 Combining Governor and Pump Bodies 40
4 ADJUSTMENT OF FUEL INJECTION PUMP AND GOVERNOR42
41 Preparations 42
42 Bottom clearance adjustment(Fuel Injection Timing) 44
421 The bottom clearance adjusting value and the Cam classification 45
43 Adjustment of Governor 46
431 Adjustment of No Load Max Engine Speed 46
432 Adjustment of Fuel Limit Bolt 46
433 Adjustment of Torque-Rise Point 46
434 Adjustment of Reverse Angleich47
435 Adjustment of Staring Injection Amount 48
436 Checking the Injection Stop 48
5 FUEL INJECTION NOZZLE 49
51 Functioning of fuel injection nozzle 49
52 Type/construction of fuel injection nozzle 49
53 Fuel injection nozzle disassembly50
54 Fuel injection nozzle inspection 51
541 Washing 51
542 Nozzle inspection52
55 Fuel injection nozzle reassembly 53
56 Adjusting fuel injection nozzle 53
561 Adjusting opening pressure53
562 Injection test54
6 TROUBLESHOOTING 55
61 Troubleshooting of fuel injection pump 55
iv
62 Major faults and troubleshooting 55
7 TIGHTENING TORQUES FOR MAIN BOLTS AND NUTS58
71 Pump part 58
72 Mechanical governor part59
8 TOOLS 60

DESCRIPTION:

Yanmar Fuel Injection Equipment Model YPD-MP2, YPD-MP4 Series Service Manual

INTRODUCTION:

• This document describes the features, disassembly, reassembly and adjustment procedure of the fuel injection unit (Model YPD-MP2,MP4) for Yanmar Diesel Engine Model TNV. Fuel injection unit is an essential mechanism of diesel engines, and thus, has to be designed to allow fine adjustment to the engine load. Therefore, the components of the fuel injection pumps are required to be given high-precision. To meet this requirement, we process and assemble them very accurately.
• Accordingly, when performing disassembly and adjustment works in the market, keep the workbenches and their environment clean to surely prevent dirt and dust from attaching to the components of the unit, and take special care that the components are not rusted.
• Please note that the specifications of the components are revised to improve the quality of the product, and thus, the details of the changed specifications will be notified through the correction table every time the change occurs.

YANMAR FUEL INJECTION EQUIPMENT MODEL YPD-MP2, YPD-MP4 SERIES SERVICE MANUAL – PDF DOWNLOAD:

IMAGES PREVIEW OF THE MANUAL:

PLEASE NOTE:

• This is the SAME manual used by the dealers to troubleshoot any faults in your vehicle. This can be yours in 2 minutes after the payment is made.
• Contact us at [email protected] should you have any queries before your purchase or that you need any other service / repair / parts operators manual.