This document provides instructions for removing and installing an engine from a 420F2 backhoe loader. It outlines 19 steps to remove the engine, which includes draining fluids, disconnecting wiring harnesses, removing mounting hardware, and lifting the engine out. It then describes 19 steps to install the engine in reverse order, including lowering the engine into place, reconnecting wiring and hoses, replacing mounting hardware, and refilling fluids. The purpose is to provide technicians with a procedure to safely remove and reinstall the engine.
𝘼𝙣𝙩𝙞𝙦𝙪𝙚 𝙋𝙡𝙖𝙨𝙩𝙞𝙘 𝙏𝙧𝙖𝙙𝙚𝙧𝙨 𝙞𝙨 𝙫𝙚𝙧𝙮 𝙛𝙖𝙢𝙤𝙪𝙨 𝙛𝙤𝙧 𝙢𝙖𝙣𝙪𝙛𝙖𝙘𝙩𝙪𝙧𝙞𝙣𝙜 𝙩𝙝𝙚𝙞𝙧 𝙥𝙧𝙤𝙙𝙪𝙘𝙩𝙨. 𝙒𝙚 𝙝𝙖𝙫𝙚 𝙖𝙡𝙡 𝙩𝙝𝙚 𝙥𝙡𝙖𝙨𝙩𝙞𝙘 𝙜𝙧𝙖𝙣𝙪𝙡𝙚𝙨 𝙪𝙨𝙚𝙙 𝙞𝙣 𝙖𝙪𝙩𝙤𝙢𝙤𝙩𝙞𝙫𝙚 𝙖𝙣𝙙 𝙖𝙪𝙩𝙤 𝙥𝙖𝙧𝙩𝙨 𝙖𝙣𝙙 𝙖𝙡𝙡 𝙩𝙝𝙚 𝙛𝙖𝙢𝙤𝙪𝙨 𝙘𝙤𝙢𝙥𝙖𝙣𝙞𝙚𝙨 𝙗𝙪𝙮 𝙩𝙝𝙚 𝙜𝙧𝙖𝙣𝙪𝙡𝙚𝙨 𝙛𝙧𝙤𝙢 𝙪𝙨.
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2. Shutdown SIS
Previous Screen
Product: BACKHOE LOADER
Model: 420F2 BACKHOE LOADER NSB
Configuration: 420F2 ADL (Air Deployable Loader) NSB00001-UP (MACHINE) POWERED BY 3054C Engine
Disassembly and Assembly
416F2, 420F2 IT, 420F2 ST, 422F2, 428F2, 430F2 IT, 430F2 ST, 432F2, 434F2 and
444F2 Backhoe Loaders Engine Supplement
Media Number -UENR6152-01 Publication Date -01/06/2015 Date Updated -06/06/2018
i06199411
Engine - Remove
SMCS - 1000-011
Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 1U-7505 Hydraulic Jack 1
B 6V-3145 Load Leveling Beam 1
Start By:
a. Remove hood.
b. Remove side panels.
c. Remove air cleaner.
d. Remove muffler.
1. Drain the coolant. Refer to Operations and Maintenance Manual, "Cooling System Coolant
(ELC) - Change" for the correct draining procedure.
2. Drain the engine oil. Refer to Operations and Maintenance Manual , "Engine Oil and Filter -
Change" for the correct draining procedures.
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3. Illustration 1 g03797183
3. Turn battery disconnect switch (1) to the OFF position.
Illustration 2 g03797188
4. Remove plate (2) and floor mat (3).
Illustration 3 g03797205
5. Remove bolts (4). Lift plate assembly (5) and secure in rear notches. Do not remove bolts
(6).
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4. Illustration 4 g03797235
6. Reposition fuel filter assembly (7) out of the way.
Illustration 5 g03849199
Illustration 6 g03849201
7. Remove coolant tank assembly (8). Remove tube (9). Remove hoses (10) and (11). Remove
tube (12).
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5. Illustration 7 g03849203
8. Remove hose (13). Remove fan guard (14). Remove fan shroud (15).
Illustration 8 g03849206
9. Remove nuts (16). Remove fan and hub assembly (17).
Illustration 9 g03849219
10. Remove bolts (18) and reposition air condition compressor (19) to the side.
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6. Illustration 10 g03849221
11. Disconnect harness assemblies (20) from the alternator.
Illustration 11 g03849240
Illustration 12 g03849251
12. Disconnect harness assemblies (21) from the electric starting motor. Disconnect clips (22)
from bracket (23). Disconnect ground strap (24).
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7. Illustration 13 g03849253
13. Remove cover (25).
Illustration 14 g03849257
14. Remove bolts (26) from flywheel (27).
Note: Rotate the engine manually in order to access all bolts (26).
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8. Illustration 15 g03849484
15. Remove bolts (29) from bell housing (28).
Illustration 16 g02997457
16. Install Tooling (A) under transmission.
Illustration 17 g03849495
17. Install Tooling (B) and a suitable lifting device. The weight of engine (30) is approximately
544 kg (1200 lb)
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9. Illustration 18 g03849498
18. Remove engine mounting bolts (31). Repeat on opposite side.
19. Remove engine (30).
Copyright 1993 - 2019 Caterpillar Inc.
All Rights Reserved.
Private Network For SIS Licensees.
Thu Nov 28 23:53:22 UTC+0800 2019
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10. Shutdown SIS
Previous Screen
Product: BACKHOE LOADER
Model: 420F2 BACKHOE LOADER NSB
Configuration: 420F2 ADL (Air Deployable Loader) NSB00001-UP (MACHINE) POWERED BY 3054C Engine
Disassembly and Assembly
416F2, 420F2 IT, 420F2 ST, 422F2, 428F2, 430F2 IT, 430F2 ST, 432F2, 434F2 and
444F2 Backhoe Loaders Engine Supplement
Media Number -UENR6152-01 Publication Date -01/06/2015 Date Updated -06/06/2018
i06199414
Engine - Install
SMCS - 1000-012
Installation Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 1U-7505 Hydraulic Jack 1
B 6V-3145 Load Leveling Beam 1
Illustration 1 g03849495
1. Attach Tooling (B) and a suitable lifting device to engine (30). The weight of engine (30) is
approximately 544kg (1200 lb). Use Tooling (B) and the suitable lifting device to position
engine (30) into the machine.
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11. Illustration 2 g03849484
Illustration 3 g03849257
2. Align bell housing (28) to the engine and install bolts (29).
3. Rotate the engine and install bolts (26) in order to connect flywheel (27) to the torque
converter.
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16. Thank you very much for
your reading. Please Click
Here. Then Get COMPLETE
MANUAL. NO WAITING
NOTE:
If there is no response to
click on the link above,
please download the PDF
document first and then
click on it.
17. Illustration 17 g03797188
16. Position floor mat (3). Position plate (2) and install the bolts . Repeat on the opposite side of
the cab.
Illustration 18 g03797183
17. Turn battery disconnect switch (1) to the ON position.
18. Fill the coolant. Refer to Operation and Maintenance Manual, "Cooling System Coolant
(ELC) - Change" for the correct filling procedure.
19. Fill the engine oil . Refer to Operation and Maintenance Manual, "Engine Oil and Filter -
Change" for the correct filling procedure.
End By:
a. Install air cleaner.
b. Install muffler.
c. Install hood assembly.
d. Install side panels.
Thu Nov 28 23:54:18 UTC+0800 2019
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18. Shutdown SIS
Previous Screen
Product: BACKHOE LOADER
Model: 420F2 BACKHOE LOADER NSB
Configuration: 420F2 ADL (Air Deployable Loader) NSB00001-UP (MACHINE) POWERED BY 3054C Engine
Disassembly and Assembly
3054C Engines for Caterpillar Built Machines
Media Number -SENR5069-18 Publication Date -01/05/2015 Date Updated -19/09/2018
i02289796
Fuel Priming Pump and Fuel Filter Base - Remove and
Install
SMCS - 1258-010; 1260-010; 1261-010-SE; 1262-010
Removal Procedure
Table 1
Required Tools(1)
Tool Part Number Part Description Qty
ZZ
9U-7069 Cap 3
9U-7067 Cap 3
(1)
SERVICE DATA: TOOLING (ZZ) WILL NOT BE IDENTIFIED IN PHOTOGRAPHS IN THE
REMOVAL OR THE INSTALLATION. THIS TOOLING IS SHOWN IN ORDER TO ASSIST THE
EXPERIENCED SERVICEMAN.
Start By:
a. Remove the assembly of the filter case and the fuel filter element. Refer to this Disassembly
and Assembly Manual, "Fuel Filter Base - Remove and Install".
Note: Put identification marks on all fuel hose assemblies and on all tube assemblies for
installation purposes. After being disconnected, plug all fuel hose assemblies and plug all tube
assemblies. This helps prevent fluid loss, and this helps to keep contaminants from entering the
system.
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
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19. NOTICE
Care must be taken to ensure that fluids are contained during
performance of inspection, maintenance, testing, adjusting, and repair
of the product. Be prepared to collect the fluid with suitable containers
before opening any compartment or disassembling any component
containing fluids.
Refer to Special Publication, NENG2500, "Dealer Service Tool
Catalog" for tools and supplies suitable to collect and contain fluids on
Cat products.
Dispose of all fluids according to local regulations and mandates.
Illustration 1 g00952432
Typical example
1. Disconnect the tube assembly (5). Disconnect the tube assembly (6). Install dust covers onto
the connectors for the fuel priming pump.
2. Disconnect the fuel return line from the connector (3). Install a dust cover to the connector
(3).
3. Disconnect the harness assembly from the connector (2).
4. Support the fuel priming pump. Remove the three setscrews (1) and discard the rubber
washers. Remove the fuel priming pump (4).
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