Caterpillar Cat 627F Wheel Tractor (Prefix 1DL) Service Repair Manual (1DL00001 and up)

1
Shutdown SIS
Previous Screen
Product WHEEL TRACTOR Model 627F WHEEL TRACTOR
1DL Configuration 627F Wheel Tractor Scraper
1DL00001-UP (MACHINE)
Disassembly and Assembly 3406C DIESEL ENGINES FOR
CATERPILLAR BUILT MACHINES Media Number
-SENR6409-02 Publication Date -01/07/2006
Date Updated -19/05/2015
SENR64090026

• Cylinder Head Assembly
• SMCS - 1100-011 1100-012
• Remove Cylinder Head Assembly
• Start By
• remove rocker shaft assemblies and push rods
• remove water temperature regulator
• remove aftercooler housing
• remove fuel injection lines
• remove exhaust manifold

• Typical Example
• Remove bolts (1) from the alternator bracket.
• Remove the bolts that hold plate (3) and remove
  the plate.
• Disconnect water line (2) from the air
  compressor.
• NOTE Turn the water line tee toward the lifting
  bracket in order to provide clearance to remove
  the head bolt.

2

• Remove bolts (4) and (5) that hold the cylinder
  head assembly to the cylinder block.
• Fasten a hoist and remove the cylinder head
  assembly. The weight is approximately 135 kg (300
  lb).
• NOTICE
• Do not put the cylinder head assembly down on a
  flat surface. This can cause damage to the fuel
  injection valves.

6. Remove the gasket and seals from the spacer
plate. Install Cylinder Head Assembly NOTE Be
sure a new gasket has been installed between the
spacer plate and the cylinder block. See topic,
"Remove Install Spacer Plate".
1. Thoroughly clean the spacer plate and the
bottom surface of the cylinder head assembly.
Install a new head gasket, new seals (1) and two
O-ring seals (2).

1. Fasten a hoist and put the cylinder head assembly
   (3) in position on the cylinder block.
2. Tighten the bolts in sequence shown in
   Illustration D11970.

3

• Large bolts (3/4 inch). Put 6V4876 Molycoat Paste
  Lubricant on bolt threads and between washers and
  underside of bolt heads.
• Small bolts (3/8 inch). See Step 4h.
• Install the cylinder head bolts and washers.
  Tighten the bolts in sequence shown.
• Tighten bolts 1 through 14 in number sequence to
  270 25 Nm (200 20 lb ft).
• Tighten bolts 1 through 14 in number sequence to
  470 20 Nm (345 15 lb ft).
• Tighten bolts 1 through 14 in number sequence
  again to 470 20 Nm (345 15 lb ft).
• Install the rocker arm shafts for the engine
  valves and the remaining (3/4 in) bolts and/or
  compression brake studs.
• Tighten bolts 15 through 26 in number sequence to
  270 25 Nm (200 20 lb ft).
• Tighten bolts 15 through 26 in number sequence to
  450 20 Nm (330 15 lb ft).
• Tighten bolts 15 through 26 in number sequence
  again to 450 20 Nm (330 15 lb ft).
• Tighten the thirteen small bolts (2) to 45 7
  Nm (33 5 lb ft).
• Make an adjustment to the valves to have a
  clearance of 0.38 mm (.015 in) for intake and
  0.76 mm (.030 in) for exhaust. Tighten the
  locknuts for the valve adjustment screws to a
  torque of 28 4 Nm (21 3 lb ft).
• Install the valve cover bases and the inner fuel
  lines. See topic, "Install Rocker Shaft
  Assemblies Push Rods".
• Install the valve covers. See topic, "Install
  Valve Covers".

Typical Example 8. Install plate (4).
4

• Connect the water line to the air compressor.
• Install bolts (5) for the alternator bracket.
  End By
• install exhaust manifold
• install fuel injection lines
• install aftercooler housing
• install water temperature regulator
• install rocker shaft assemblies and push rods

Copyright 1993 - 2021 Caterpillar Inc. All
Rights Reserved. Private Network For SIS
Licensees.
Thu May 13 114603 UTC0800 2021
5
Shutdown SIS
Previous Screen
Product WHEEL TRACTOR Model 627F WHEEL TRACTOR
1DL Configuration 627F Wheel Tractor Scraper
1DL00001-UP (MACHINE)
Disassembly and Assembly 3406C DIESEL ENGINES FOR
CATERPILLAR BUILT MACHINES Media Number
-SENR6409-02 Publication Date -01/07/2006
Date Updated -19/05/2015
SENR64090027
Spacer Plate SMCS - 1221-011 1221-012 Remove
Spacer Plate Start By a. remove cylinder head
assembly
1. Remove spacer plate (1) from the cylinder
block. NOTICE Do not cause damage to the
dowels.
2. Remove the spacer plate gasket and two O-ring
seals.
Install Spacer Plate
6
https//www.aservicemanualpdf.com/ My Dear
Friend! Thank you very much for visiting. Full
manual if required, please enter the following
URL into your browser. https//www.aservicemanual
pdf.com/
7
1. Thoroughly clean the spacer plate and cylinder
block surface. Install two O-ring seals (1) in
the cylinder block.
NOTICE Both surfaces of the spacer plate, top of
cylinder block and both sides of the spacer
plate gasket must be clean and dry. Gasket
adhesives or other substances must not be used
on these surfaces.

• Install a new gasket between the spacer plate and
  cylinder block. Put spacer plate (2) in position
  on the cylinder block.
• Check cylinder liner projection. See topic,
  "Install Cylinder Liners". End By
• a. install cylinder head assembly

Copyright 1993 - 2021 Caterpillar Inc. All
Rights Reserved. Private Network For SIS
Licensees.
Thu May 13 114659 UTC0800 2021
8
Shutdown SIS
Previous Screen
Product WHEEL TRACTOR Model 627F WHEEL TRACTOR
1DL Configuration 627F Wheel Tractor Scraper
1DL00001-UP (MACHINE)
Disassembly and Assembly 3406C DIESEL ENGINES FOR
CATERPILLAR BUILT MACHINES Media Number
-SENR6409-02 Publication Date -01/07/2006
Date Updated -19/05/2015
SENR64090028
Valves SMCS - 1105-011 1105-012 Remove Valves
Start By a. remove cylinder head assembly

• Use Tool (A) to compress springs (1).
• Remove the locks.
• Remove Tool (A), the valve, the rotocoil, and the
  spring.
• NOTE If a valve can be used again, put
  identification on the valve for location at
  installation.

9

1. Use Tool (B) to check spring force. The
   specifications for the spring are given in
   Specifications Manual, SENR6470.
2. Do Steps 1 through 4 again for the remainder of
   the valves.

Install Valves
1. Put clean engine oil on the valve stem.
Install washer (3), spring (2), rotocoil (1) and
the valve.

1. Use Tool (A) to compress the spring.
2. Install locks (4) with the thick end up.

Locks can be thrown from valve when compressor is
released, if they are not in their correct
position on the valve stem.
10

• Remove the compressor and hit the valve with a
  soft faced hammer to be sure locks are in their
  correct position on the valve.
• Do Steps 1 through 4 again for the remainder of
  the valves. End By
• a. install cylinder assembly

Copyright 1993 - 2021 Caterpillar Inc. All
Rights Reserved. Private Network For SIS
Licensees.
Thu May 13 114754 UTC0800 2021
11
Shutdown SIS
Previous Screen
Product WHEEL TRACTOR Model 627F WHEEL TRACTOR
1DL Configuration 627F Wheel Tractor Scraper
1DL00001-UP (MACHINE)
Disassembly and Assembly 3406C DIESEL ENGINES FOR
CATERPILLAR BUILT MACHINES Media Number
-SENR6409-02 Publication Date -01/07/2006
Date Updated -19/05/2015
SENR64090029
Valve Seat Inserts SMCS - 1103-010 Remove
Install Valve Seat Inserts
Start By a. remove valves

• Use Tool (A) to remove the valve seat inserts
  from the cylinder head.
• Clean and remove any burrs from the valve seat
  bores.
• NOTE For reconditioning information of the
  cylinder head, see Service Training Meeting
  Guide, SESV1202.
• NOTE The following steps are for the
  installation of the valve seat inserts.

12

• Lower the temperature of the new valve seat
  inserts. Use Tool (B) to install the new valve
  seat inserts in the cylinder head.
• End By
• a. install valves

Copyright 1993 - 2021 Caterpillar Inc. All
Rights Reserved. Private Network For SIS
Licensees.
Thu May 13 114850 UTC0800 2021
13
Shutdown SIS
Previous Screen
Product WHEEL TRACTOR Model 627F WHEEL TRACTOR
1DL Configuration 627F Wheel Tractor Scraper
1DL00001-UP (MACHINE)
Disassembly and Assembly 3406C DIESEL ENGINES FOR
CATERPILLAR BUILT MACHINES Media Number
-SENR6409-02 Publication Date -01/07/2006
Date Updated -19/05/2015
SENR64090030
Bridge Dowels SMCS - 1121-011 1121-012 Remove
Bridge Dowels
Start By a. remove valves
1. Use Tool (A) to remove bridge dowel (1).
Install Bridge Dowels
14

• Use Tool (A) to install the bridge dowel.
• End By
• a. install valves

Copyright 1993 - 2021 Caterpillar Inc. All
Rights Reserved. Private Network For SIS
Licensees.
Thu May 13 114946 UTC0800 2021
15
Shutdown SIS
Previous Screen
Product WHEEL TRACTOR Model 627F WHEEL TRACTOR
1DL Configuration 627F Wheel Tractor Scraper
1DL00001-UP (MACHINE)
Disassembly and Assembly 3406C DIESEL ENGINES FOR
CATERPILLAR BUILT MACHINES Media Number
-SENR6409-02 Publication Date -01/07/2006
Date Updated -19/05/2015
SENR64090031
Valve Guides SMCS - 1104-011 1104-012 Remove
Valve Guides
Start By a. remove valves
1. Use Tool (A) to remove the valve guides.
Install Valve Guides
16

• Put clean engine oil on the outside of the valve
  guide.
• Use Tool (A) to install the valve guides.
• After installation, the inside diameter of the
  valve guide must be 9.487 0.025 mm (.3735
• .0010 in). The maximum diameter of used guides
  is 8.538 mm (.3361 in).
• End By
• a. install valves

Copyright 1993 - 2021 Caterpillar Inc. All
Rights Reserved. Private Network For SIS
Licensees.
Thu May 13 115042 UTC0800 2021
17
Shutdown SIS
Previous Screen
Product WHEEL TRACTOR Model 627F WHEEL TRACTOR
1DL Configuration 627F Wheel Tractor Scraper
1DL00001-UP (MACHINE)
Disassembly and Assembly 3406C DIESEL ENGINES FOR
CATERPILLAR BUILT MACHINES Media Number
-SENR6409-02 Publication Date -01/07/2006
Date Updated -19/05/2015
SENR64090032
Oil Pan Plate SMCS - 1302-011 1302-012 Remove
Oil Pan Plate

• Typical Example
• Drain the oil from the engine into a suitable
  container for storage or disposal.
• Remove the lower clamp and bracket that hold the
  breather tube to the cylinder block and oil pan.
• Remove all but four of the bolts (1) that hold
  the oil pan to the cylinder block.

Use two persons to hold the oil pan in position
while the last four bolts are removed.
4. Remove the oil pan (2). Weight of the oil pan
is 57 kg (126 lb).
18
5. Remove suction bell (3). Remove suction bell
and tube (4). Remove oil supply tube (5). Remove
plate (6).
Install Oil Pan Plate

1. Put plate (1) in position on the cylinder block.
   Put suction bell and tube (2) in position on the
   oil pump and cylinder block. Install the bolts
   that hold it.
2. Install oil supply tube (4).
3. Install the suction bell (3).
4. Install two 3/8 in 16 NC Guide Pins 6 in long in
   the cylinder block. Put the oil pan (5) in
   position on the cylinder block. Install all but
   two of the bolts that hold it. Remove the two
   guide pins. Install the last two bolts.
5. Fill the engine with oil to the correct level.
   See the Operation Maintenance Manual.

Copyright 1993 - 2021 Caterpillar Inc. All
Rights Reserved. Private Network For SIS
Licensees.
Thu May 13 115137 UTC0800 2021
19
Shutdown SIS
Previous Screen
Product WHEEL TRACTOR Model 627F WHEEL TRACTOR
1DL Configuration 627F Wheel Tractor Scraper
1DL00001-UP (MACHINE)
Disassembly and Assembly 3406C DIESEL ENGINES FOR
CATERPILLAR BUILT MACHINES Media Number
-SENR6409-02 Publication Date -01/07/2006
Date Updated -19/05/2015
SENR64090033
Oil Pump SMCS - 1304-016 1304-010
1304-015 Remove Install Oil Pump Start By a.
remove oil pan
1. Remove oil supply tube (1) and suction bell
and tube (2).

1. Remove bolts (3) that hold the oil pump to the
   cylinder block and remove oil pump (4).
2. To install, put oil pump (4) in position on the
   cylinder block. Install the bolts that hold the
   oil pump to the cylinder block.
3. Put clean engine oil on the O-ring seals of the
   tubes.

20

• Install oil supply tube (1), suction bell and
  tube (2).
• End By
• a. install oil pan

Disassemble Oil Pump
Start By a. remove oil pump

1. Remove the bolt and washer that hold the gear on
   the shaft.
2. Use Tool (A) and remove drive gear (1) from the
   shaft. Remove the key from the shaft.

1. Remove retainer (3) for the bypass valve. Remove
   the spring and the bypass valve.
2. Remove cover (2) from the pump body.

21
5. Use Tool (B) and remove the bearings from the
cover.

1. Remove gears (5) from pump body (4).
2. Use Tool (B) and remove the bearings from pump
   body (4).

Assemble Oil Pump
1. Use Tool (B) to install the bearings in the
pump body. Install the bearings so the joint in
the bearings is 30 15 degrees from the center
line of the oil pump outlet passage (2).
22
2. Install idler gear and drive gear (5) in the
oil pump body (4). Put clean engine oil on the
bearings and the gears.

1. Use Tool (A) and install the bearings in cover
   (2). Install the bearings so the joint of the
   bearing bores toward oil pump outlet passage
   (6).
2. Install bypass valve (7), spring (8) and the
   retainer.
3. Install the key on the shaft.

• Install gear (1) on the shaft. Install the washer
  and bolt that hold the gear on the shaft. Be sure
  the pump turns freely after assembly.
• End By
• a. install oil pump

Copyright 1993 - 2021 Caterpillar Inc. All
Rights Reserved. Private Network For SIS
Licensees.
Thu May 13 115233 UTC0800 2021
23
Shutdown SIS
Previous Screen
Product WHEEL TRACTOR Model 627F WHEEL TRACTOR
1DL Configuration 627F Wheel Tractor Scraper
1DL00001-UP (MACHINE)
Disassembly and Assembly 3406C DIESEL ENGINES FOR
CATERPILLAR BUILT MACHINES Media Number
-SENR6409-02 Publication Date -01/07/2006
Date Updated -19/05/2015
SENR64090034
Piston Cooling Tubes SMCS - 1307-010 Remove
Install Piston Cooling Tubes
Start By a. remove oil pump NOTE The piston and
connecting rod were removed for better
illustration.

• Remove bolts (1). Remove piston cooling tubes (2)
  from the engine. Use Tool (A) to turn the
  crankshaft in a clockwise direction (as seen from
  the front of the engine) to get access to all of
  the piston cooling tubes.
• NOTE The following steps are for the
  installation of the piston cooling tubes.
• Check the alignment of the piston cooling tubes
  with Tool (B). See Use Of 5P8709 Tool Group for
  Alignment Of Piston Cooling Jets, SMHS7267 for
  the correct alignment procedure.

24

• Install piston cooling tubes (2) on the engine.
  Use Tool (A) to turn the crankshaft clockwise (as
  seen from the front of the engine) to get access
  for the installation of the piston cooling tubes.
• End By
• a. install oil pump

Copyright 1993 - 2021 Caterpillar Inc. All
Rights Reserved. Private Network For SIS
Licensees.
Thu May 13 115329 UTC0800 2021
25
Shutdown SIS
Previous Screen
Product WHEEL TRACTOR Model 627F WHEEL TRACTOR
1DL Configuration 627F Wheel Tractor Scraper
1DL00001-UP (MACHINE)
Disassembly and Assembly 3406C DIESEL ENGINES FOR
CATERPILLAR BUILT MACHINES Media Number
-SENR6409-02 Publication Date -01/07/2006
Date Updated -19/05/2015
SENR64090035

• Pistons Connecting Rod Assemblies
• SMCS - 1225-011 1225-012 1225-017
• Remove Pistons Connecting Rod Assemblies
• Start By
• remove cylinder head assembly
• remove oil pump
• remove piston cooling tubes
• Remove the carbon ridge from the top inside
  surface of the cylinder liners.

1. Turn the crankshaft until two pistons are at
   bottom center.
2. Remove bolts (1) and the bearing caps. Push the
   rods and pistons up until the rings are out of
   the cylinder liners.

26
Please write to us. Our email
aservicemanualpdf_at_yahoo.com Please go to the
homepage to get the full manual, or other brand
PDF manuals. Home Site aservicemanualpdf.com
27
Thank you very much for your reading. Please
Click Here. Then Get COMPLETE MANUAL. NO WAITING
GET MORE OTHER MANUALS
https//www.aservicemanualpdf.com/
NOTE If there is no response to click on the
link above, please download the PDF document
first and then click on it.
GET MORE OTHER MANUALS
https//www.aservicemanualpdf.com/
28

1. Remove pistons (2) and connecting rods from the
   cylinder liners.
2. Do Steps 1 through 4 for the remainder of the
   pistons and connecting rods.

Install Pistons Connecting Rod Assemblies
1. Put clean engine oil on piston rings,
connecting rod bearings and cylinder liners.

• Use Tool (A), and install piston (2) and the
  connecting rod in the cylinder liner.
• Install the bearing cap on the connecting rod
  with the number on the side of the bearing cap on
  the same side and same number as on the
  connecting rod.
• Put 2P2506 Thread Lubricant on the threads of the
  bolts. Install the nuts, and tighten them to a
  torque of 90 8 Nm (67 6 lb ft). Put a mark
  on the nuts and cap, and tighten the nuts an
  extra 90 5 degrees.
• Do Steps 1 through 4 for the remainder of the
  pistons and connecting rods. End By
• install piston cooling tubes
• install oil pump
• install cylinder head assembly

29
Disassemble Assemble Pistons Connecting Rod
Assemblies
Start By a. remove pistons and connecting rod
assemblies

1. Remove bearings (3) from the connecting rod and
   connecting rod cap.
2. Remove retainer ring (1) with Tool (A).
3. Remove pin (2) and connecting rod (4) from the
   piston.

4. Remove piston rings (5) from the piston with
Tool (B). Clean the piston ring grooves on the
pistons with an acceptable ring groove cleaning
tool.
30
NOTE See, Use Of Piston Bearing Removal And
Installation Tools, Special Instructions,
SMHS7295. 5. Heat connecting rod (4) in an oven
to a temperature of 177 to 260C (350 to 500
F). Never use a direct flame to heat a
connecting rod.

• Put connecting rod (4) in position on the base
  plate of Tool (C). Put a new rod pin bearing (6)
  on the adapter part of Tool (C).
• NOTE The old bearing is pushed out by Tool (C)
  as the new bearing is installed.
• Use Tool (C) to push the new bearing into the
  connecting rod until the push adapter of Tool (C)
  makes full contact with the connecting rod
  surface.
• Use a pin boring machine to make the rod pin
  bearing the correct size. The bore in the new rod
  pin bearing must be 50.830 0.008 mm (2.0012
  .0003 in).
• Check the clearance between the ends of the
  piston rings. See the topic, "Pistons Rings" in
  Specifications Manual, SENR6470.
• Install the oil ring spring in the oil ring
  groove of the piston.
• NOTE The oil ring is to be installed over the
  spring with the oil ring end gap 180 from the
  oil ring spring joint.
• Install the oil ring on the piston with tool (B).
• Install the second (intermediate) piston ring
  with the side that has the identification "UP-2"
  toward the top of the piston. Use Tool (B) to
  install the ring.
• Install the first (top) piston ring with the side
  that has the identification "UP-1" toward the top
  of the piston. Use Tool (B) to install the ring.
• NOTE After the installation of all three piston
  rings, put the piston rings in position so the
  end gaps are 120 degrees apart.
• Put the piston in position on connecting rod (4).
  Put clean engine oil on pin (2), and install the
  pin. Install retainer rings (1) with Tool (A).
  Make sure the retainer rings are in the grooves
  of the piston.

31
https//www.aservicemanualpdf.com/ My Dear
Friend! Thank you very much for visiting. Full
manual if required, please enter the following
URL into your browser. https//www.aservicemanual
pdf.com/