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 15 - Engine

 12 - Crankshaft

 00 - General

15 - 82

9813/7450-2

15 - 82

Figure 155.

F

E

E

J jets (x4)

F

Fixing screws

3.1. Insert the cooling jets into the crankcase.
3.2. Note:  There  are  different  types  of  cooling

jets  installed  depending  on  the  engine

application. The jets are colour coded.

3.3. Be sure to install the correct jets. Refer to

the relevant parts catalogue for the correct

cooling jet identification.

3.4. Tighten the retaining screws to the correct

torque value.

4. Install the upper bearing shells as follows:

Figure 156.

D

G

D

Main bearing shells

G

Bearing location tab

4.1. Use  a  suitable  degreasing  agent  to  make

sure that the surface of the upper bearing

shells are clean.

Consumable: Cleaner/Degreaser - General

purpose solvent based parts cleaner

4.2. Assemble  the  bearing  shells  into  the

crankcase bearing saddles. Make sure that

the  location  tab  engages  into  the  slot  as

shown.

4.3. Important: Make sure that the oil-way holes

in the bearing saddles align with the holes

in the bearing shell. If the holes are even

partially misaligned the piston cooling oil jet

will be restricted, causing the engine to fail.

4.4. Lubricate  the  upper  bearing  shells  with

clean engine oil.

5. Use suitable lifting equipment (if the crankshaft

is lifted manually, two people will be required), to

carefully lower the crankshaft into the crankcase.

DO NOT rotate the crankshaft, the bearing shells

can become dislodged, refer to step 4.

6. Install the thrust washers as follows:

Summary of Contents for 225T

Page 1: ...ut first studying the Operator s Manual You must understand and follow the instructions in the Operator s Manual If you do not understand anything ask your employer or JCB dealer to explain it Do not...

Page 2: ...00 General Introduction 15 67 Remove and Install 15 68 Introduction The bedplate acts as the main strength component of the engine it maintains the correct alignment and supports the weight of the in...

Page 3: ...refer to PIL 15 42 9 Remove the fuel injectors refer to PIL 18 18 10 Remove the rocker assembly including the push rods refer to PIL 15 42 11 It is not necessary to remove the cylinder head assembly t...

Page 4: ...7450 2 15 69 Figure 146 5 1 18 18 18 18 18 9 11 4 8 12 X 13 18 3 7 6 2 10 P3 1 10 Main bearing bolts x10 11 Bedplate peripheral bolts x16 12 Bedplate 13 Crankcase 18 Upper bearing shell x5 P3 O ring i...

Page 5: ...ble lifting equipment if the bedplate is lifted manually two people will be required DO NOT use a lever to separate the bedplate 4 Remove and discard the O ring 5 Carefully remove the upper bearing sh...

Page 6: ...71 9813 7450 2 15 71 T4 Guide pins x2 obtain locally T5 Sealant template T6 Lifting bolts x4 obtain locally V Sealant template portion for removal W Bearing tab X Rear main bearing Y Bearing location...

Page 7: ...e A by removing portion V Special Tool Template for Sealant Bedplate to Crankcase 4 Cyl Qty 1 8 Locate the holes in the templates A and B using four fixing bolts at positions Y Use the templates as a...

Page 8: ...8mm Main rear bearing journal diameter x1 min 99 98mm max 100mm Connecting rod bearing journal diameter min 72 98mm max 73mm Maximum wear and ovality on journals 1 Crankshaft induction hardness 55 HRc...

Page 9: ...15 Engine 12 Crankshaft 00 General 15 77 9813 7450 2 15 77 Component Identification Figure 148 B A A Crankcase B Crankshaft...

Page 10: ...pper main bearing shell allows oil transfer to cross drillings in the crankshaft to feed each of the big end bearings Crankshaft gear is splash lubricated Front and rear crankshaft oil seals prevent o...

Page 11: ...ce limits refer to Technical Data PIL 15 12 Figure 151 B B Crankshaft 3 Check that the oil way cross drillings in the crankshaft are clear and free from debris Blocked or restricted oil ways will caus...

Page 12: ...r to PIL 15 42 11 It is not necessary to remove the cylinder head assembly to remove the crankshaft If however the cylinder head needs to be removed for other reasons for piston and connecting rod rem...

Page 13: ...c for damage and excessive wear Refer to Check Condition PIL 15 12 Before Installation 1 Clean off all traces of the old sealant compound from the crankcase and bedplate mating faces 2 Use a suitable...

Page 14: ...e surface of the upper bearing shells are clean Consumable Cleaner Degreaser General purpose solvent based parts cleaner 4 2 Assemble the bearing shells into the crankcase bearing saddles Make sure th...

Page 15: ...Our support email ebooklibonline outlook com...

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