Caterpillar Cat 322B L EXCAVATOR (Prefix 5CR) Service Repair Manual Instant Download.pdf

Service Repair Manual
Models
322B L EXCAVATOR

Shutdown SIS
Previous Screen
Product: EXCAVATOR
Model: 322B L EXCAVATOR 5CR
Configuration: 322B EXCAVATOR WITH FIELD INSTALLED COMBINE/ROTATE FUNCTIONS 5CR00001-UP (MACHINE)
Disassembly and Assembly
322B & 322B L EXCAVATORS MACHINE SYSTEMS
Media Number -SENR1647-00 Publication Date -07/01/1997 Date Updated -30/03/2004
SENR16470004
Bucket Linkage Group
SMCS - 6513-010
Remove & Install Bucket Linkage Group
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322B EXCAVATOR WITH FIELD INSTALLED COMBINE/ROTATE FUNCTION...
2019/10/27
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...

1. Start the machine, and position the bucket, stick and rod links as shown.
2. Remove retaining bolt (1) and two nuts (2) from bucket pin (3).
When bucket pin (3) is removed, link assembly (4) will swing forward
and out of the bucket. To prevent possible personal injury, do not stand
in front of link assembly (4) when bucket pin (3) is being removed.
3. Using a hammer and punch, remove bucket pin (3) far enough to free link assembly (4) from
the bucket. Do not remove bucket pin (3) completely from the bucket. Link assembly (4) will
swing forward when the bucket pin is removed.
4. Using two persons, remove bucket pin (3) by hand. The weight of the bucket pin is 23 kg (50
lb). Remove O-ring seals (5) from the flanges on the bucket.
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2019/10/27

5. Fasten a hoist to link assembly (4) as shown, and raise it until it is in a horizontal position.
6. Remove two nuts (6) and retaining bolt (7) from pin (8). Remove pin (8) from the link
assemblies and the rod end of the bucket cylinder. Remove link assembly (4). The weight of pin
(8) is 23 kg (50 lb). The weight of link assembly (4) is 102 kg (225 lb).
7. Fasten a hoist to left hand link assembly (9) as shown. Remove two nuts (10) and retaining bolt
(11) from pin (12). Using a hammer and punch, drive pin (12) into the stick until the left hand link
assembly is free. Remove the left hand link assembly. The weight of the left hand link assembly is
25 kg (55 lb). Refasten the hoist to the right hand link assembly. Remove pin (12) from the stick
and right hand link assembly. Remove the right hand link assembly. The weight of the right hand
link assembly is 20 kg (45 lb). The weight of pin (12) is 14 kg (30 lb).
8. Remove six lip seals (13) from link assembly (4).
3/8
2019/10/27

9. Remove two bearings (14) from the open end of the link assembly with Tooling (B). Fasten
Tooling (B) to the link assembly as shown. Fasten a hoist to Tooling (B) to support it; then
remove the bearing. Remove the bearing on the other side of the link assembly the same way.
10. Remove the two bearings from the closed end of the link assembly with a chisel or by cutting.
11. Remove two lip seals (15) from the stick at the stick-to-bucket linkage pin joint.
12. Remove the two bearings from the stick at the stick-to-bucket linkage pin joint with Tooling
(C). Fasten Tooling (C) to the bearing as shown. Fasten a hoist to Tooling (C) to support it; then
remove the bearing. Remove the bearing on the other side of the stick the same way.
13. Remove round shim (16) from the inside of the right hand link assembly.
4/8
2019/10/27

14. Remove bolt (17) and the washer that hold U-shaped shim (18) to the inside of the right hand
link assembly.
NOTE: The following steps are for the installation of the bucket linkage group.
NOTICE
Make sure the stick pin bore, link assembly bores, pins and O-ring
seals are thoroughly clean and free of dirt prior to installation of the
bucket linkage group.
15. Install the two bearings in the stick at the stick-to-bucket linkage pin joint. Lower the
temperature of the bearings, and install them in the pin bore until each one is 7.5 ± 0.8 mm (.30
± .03 in) below the outside surface of the stick.
16. Install the two bearings in the closed end of link assembly (4). Lower the temperature of the
bearings, and install them in the pin bore until each one is 7.0 ± 0.8 mm (.28 ± .03 in) below the
outside surface of the link assembly.
17. Install two bearings (14) in the open end of link assembly (4). Lower the temperature of the
bearings, and install them in the pin bores until each one is 7.0 ± 0.8 mm (.28 ± .03 in) below the
outside surface of the link assembly.
NOTICE
To prevent dirt and debris from entering the pin bores in link assembly
(4) and the stick, install all lip seals (13) and (15) with the sealing lip
facing toward the outside of the pin bores.
18. Using Tool (A), install the six lip seals (13) in link assembly (4). Install the seals with the
sealing lip facing toward the outside of the pin bores and until each one makes contact with the
bearing.
19. Using Tool (A), install the two lip seals (15) in the stick. Install the seals with the sealing lip
facing toward the outside of the pin bore and until each one makes contact with a bearing.
5/8
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20. Apply 5P-0960 Multipurpose Grease on the bearings and seals in the stick and link
assembly.
21. Apply 5P-0960 Multipurpose Grease on pin (12). Install the right hand link assembly, left
hand link assembly (9) and pin (12) as shown. Align the retaining bolt hole in pin (12) with the
retaining bolt hole in left hand link assembly (9). Temporarily install retaining bolt (11) and two
nuts (10) which hold it.
22. Prior to installing link assembly (4), make sure the grease fitting in the rod end of the bucket
cylinder is facing away from the stick.
23. Fasten a hoist to link assembly (4), and put it in position on the rod end of the bucket cylinder
and between the right and left hand link assemblies. Apply 5P-0960 Multipurpose Grease on pin
(8). Install the pin to hold the unit together. Align the retaining bolt hole in pin (8) with the
retaining bolt hole in the left hand link assembly. Temporarily install retaining bolt (7) and two
nuts (6) which hold it.
24. Slide link assembly (4) to one side until it makes contact with left hand link assembly (9).
Measure the total clearance between link assembly (4) and the right hand link assembly. The total
clearance must not be more than 0.8 mm (.03 in). If the clearance is greater than 0.8 mm (.03 in),
shim will be required.
6/8
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25. If it has been determined that shims need to be added, remove the right hand link assembly.
Install a U-shaped shim (18), the washer and bolt (17).
26. Apply 5P-0960 Multipurpose Grease on shims (16) to hold them th the inside of the right
hand link assembly. Reinstall the right hand link assembly.
27. Temporarily install an O-ring seal (5) on each flange of the link at the bucket-to-link assembly
pin bore.
28. Make sure the threaded puller hole in bucket pin (3) is clean. Apply 5P-0960 Multipurpose
Grease on bucket pin (3). Push the link assembly in position in the bucket. Install bucket pin (3)
with a hammer. Put the retaining bolt hole in bucket pin (3) in alignment with the retaining bolt
hole in the bucket. Temporarily install retaining bolt (1) and two nuts (2).
7/8
2019/10/27

29. Rotate pins (8) and (12) until the retaining bolt hole in each pin is in horizontal alignment as
shown in the illustration.
30. Tighten retaining nuts (2), (6) and (10) as shown in the illustration. Tighten the outside nut
until it is even or 0.5 mm (0.02 in) above the end of the retaining bolt. Tighten the inside nut
against the outside nut to a torque of 200 ± 40 N·m (150 ± 30 lb ft).
31. Lubricate the bucket pins. Refer to the Operation & Maintenance Manual for the correct
procedure.
Copyright 1993 - 2019 Caterpillar Inc.
All Rights Reserved.
Private Network For SIS Licensees.
Sun Oct 27 12:19:53 UTC+0800 2019
8/8
2019/10/27

Shutdown SIS
Previous Screen
Product: EXCAVATOR
SENR16470005
Bucket Cylinder
SMCS - 5457-010; 5457-017
Remove & Install Bucket Cylinder
Fluid Spillage Containment
Care must be taken to ensure that fluids are contained during performance of inspection,
maintenance, testing, adjusting and repair of the machine. Be prepared to collect the fluid with
suitable containers before opening any compartment or disassembling any component containing
fluids. Refer to "Tools And Shop Products Guide", NENG2500 for tools and supplies suitable to
collect and contain fluids in Caterpillar machines. Dispose fluids according to local regulations and
mandates.
At operating temperature, the hydraulic oil is hot and under pressure.
Hot oil can cause burns. To prevent possible personal injury, release the
pressure in the implement hydraulic circuits (boom, stick and bucket)
before any hydraulic lines or components are disconnected and
removed.
1. Release the pressure in the implement hydraulic circuits (boom, stick, and bucket) before any
hydraulic lines or components are disconnected or removed as follows:
a. Start the engine. Fully extend the stick and bucket. Lower the stick and bucket to the ground.
b. Shut off the engine, and place key in the "ON" position. Put the hydraulic activation control lever
in the "UNLOCK" position.
c. Move the control levers for boom, stick and swing to all full stroke positions. This will release
any pressure that might be present in the pilot system.
1/8
2019/10/27

d. Return the key to "OFF" position.
e. Slowly loosen the fill plug on the hydraulic tank, and release the pressure.
f. Tighten the fill plug on the hydraulic tank to as torque of 68 ± 7 N·m (50 ± 5 lb ft).
g. The pressure in the hydraulic system has been released and lines and components can be removed.
2. Fasten a hoist to the rod end of the bucket cylinder as shown. Put a wood block (3) under the link
assemblies as a support.
3. Remove the two nuts and retaining bolt (1). Remove pin (2). The weight of the pin is 23 kg (50
lb).
4. Raise bucket cylinder (4) until it is level; then fasten a lifting sling and a hoist to the head end of
the bucket cylinder as shown. A small amount of oil will drain from hoses (5) when they are
disconnected. Disconnect two hoses (5) from the bucket cylinder. Put plugs in the ends of the hoses
to prevent oil loss and to keep contaminants out of the hydraulic system.
5. Remove pin assembly retaining bolt (6), the washer, pin assembly (7) and the spacer. Remove the
bucket cylinder. The weight of the bucket cylinder is 193 kg (425 lb).
NOTE: Machines may be equipped with shims between the stick and bucket cylinder at the stick-to-
bucket cylinder pin joint. For assembly purposes, put identification marks on the shims as to their
location.
6. Remove the shims (if so equipped) at the stick-to-bucket cylinder pin joint.
2/8
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NOTE: The following steps are for the installation of the bucket cylinder.
7. Make sure the pin bores in the stick, link assemblies, and bucket cylinder are clean and free of dirt
prior to installation of the bucket cylinder.
8. Fasten a hoist to bucket cylinder (4), and put it in position in the stick. Make sure the pin bores in
the stick and bucket cylinder are in alignment. Also, make sure the grease fitting in the head end and
rod end of the bucket cylinder are facing away from the stick.
9. Apply 5P-0960 Multipurpose Grease on pin assembly (7). Temporarily install the pin assembly.
Do not remove the hoist from the bucket cylinder at this time.
Top View Of Stick And Bucket Cylinder
10. Slide the bucket cylinder to one side until it makes contact with the stick. Measure the total
clearance between the bucket cylinder and stick at the pin bore. The total clearance of (a) and (b)
must not be more than 1.0 mm (.04 in). If the total clearance is less than 1.0 mm (.04 in), the
addition of shims between the bucket cylinder and stick will not be required. If the total clearance is
more than 1.0 mm (.04 in), add the correct thickness of shims to obtain the necessary clearance.
11. If it has been determined that shims need to be installed between the stick and bucket cylinder,
remove pin assembly (7). Install the shims between the stick and bucket cylinder on the side
opposite the pin assembly retaining bolt; then reinstall the spacer and pin assembly (7). Install pin
assembly retaining bolt (6) and the washer that holds the pin assembly in position. Tighten pin
assembly retaining bolt (6) to a torque of 325 ± 40 N·m (240 ± 30 lb ft).
3/8
2019/10/27

12. Lower the bucket cylinder between the link assemblies. Apply 5P-0960 Multipurpose Grease
on pin (2). Make sure the bore in the bucket cylinder rod is in alignment with the bores in the link
assemblies. Install pin (2). Install retaining bolt (1) and the two nuts.
13. Rotate pin (2) until it is in the position shown. Tighten the nuts on retaining bolt (1) as shown in
the illustration. Tighten the outside nut until it is even or 0.5 mm (.02 in) above the end of the
retaining bolt. Tighten the inside nut against the outside nut to a torque of 200 ± 40 N·m (150 ± 30
lb ft).
14. Check the condition of the O-ring seals in the ends of hoses (5) prior to installation. If the seals
are damaged, use new parts for replacement. Connect the two hoses to the bucket cylinder.
15. Fill the hydraulic oil tank with oil to the correct level. Lubricate the bucket cylinder support pins.
Refer to the Operation & Maintenance Manual for the correct procedures.
16. Start the machine, and run it at low idle speed. Move the control lever for the bucket cylinder so
the cylinder rod extends to its halfway position; then retract the cylinder rod. The cylinder should be
cycled this way approximately ten times to remove the air from the hydraulic system. Recheck the
oil level in the hydraulic oil tank.
Disassemble & Assemble Bucket Cylinder
4/8
2019/10/27

Start By:
a. remove bucket cylinder
NOTE: Several different bucket cylinder groups are available. The disassembly and assembly
procedure which follows is similar for all the bucket cylinder groups. However, reference must be
made to the 322B & 322B L Excavator Attachments Specifications module, SENR1637, for the
correct specifications for a specific bucket cylinder group.
mandates.
5/8
2019/10/27

1. Put the bucket cylinder on Tooling (A). The weight of the bucket cylinder is 193 kg (425 lb).
2. Remove grease fittings (10) from the cylinder assembly and the rod assembly.
3. Remove 12 bolts (6) that hold head (23) to cylinder assembly (22).
4. Use Tooling (A), to slide rod assembly (24) out of cylinder assembly (22).
5. Remove seal assembly (20), two rings (19), two rings (18) and two rings (17) from the piston.
6. Remove setscrew (13) and ball (14) from locknut (15). Using Tool (B), remove locknut (15) that
holds piston (21) to rod assembly (24). Remove shim (16). Remove the piston from the rod
assembly.
7. Slide cylinder assembly (22) back onto the rod assembly. Install bolts (6) that hold head (23) to
the cylinder assembly. Pull the cylinder assembly and head (23) as a unit away from the rod
assembly. Remove the head from the cylinder assembly.
8. Remove ring (8), O-ring seal (9), ring (7), bearing (5), seal (1), ring (2), seal (3) and seal (4) from
head (23).
9. Remove lip seal (11) from both sides of the pin bore in the cylinder assembly. Remove lip seal
(25) from both sides of the pin bore in the rod assembly.
10. Remove bearing (12) from the pin bore in the cylinder assembly. Remove bearing (26) from the
pin bore in the rod assembly.
NOTE: The following steps are for the assembly of the bucket cylinder. Refer to Illustration
D86074 for assembly of the bucket cylinder.
11. Check the condition of all parts of the bucket cylinder for wear or damage. If any of the parts are
worn or damaged, use new parts for replacement.
6/8
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12. Install seal (4), seal (3) and ring (2) in head (23) as shown. Install lip seal (1) in head (23) with
the lip of the seal facing away from the inside of the cylinder. Install bearing (5) and ring (7) in head
(23) as shown. Install O-ring seal (9) and ring (8) in head (23) as shown.
13. Put clean hydraulic oil on the lip of seal (1), ring (2), seal (3) and seal (4).
14. Put head (23) in position on cylinder assembly (22). Install 12 bolts (6) that hold it. Install rod
assembly (24) in head (23) and the cylinder assembly. Remove 12 bolts (6). Remove cylinder
assembly (22) from the rod assembly and head.
NOTE: Step 16 is only for cylinders equipped with a
119-5304 Locknut. Steps 17 and 18 are only for cylinders equipped with a 7Y-4695 Locknut and a
7I-1018 Locknut.
15. Install piston (21) on the rod assembly. Lubricate the threads on the end of the rod assembly with
4C-5593 Thread Compound. Install spacer (16). Install locknut (15). Tighten locknut (15), with
Tool (B), to the specified torque value.
16. Install piston (21) on the rod assembly. Lubricate the threads on the end of the rod assembly with
4C-5593 Thread Compound. Install spacer (16). Install locknut (15). Tighten locknut (15), with
Tool (B), to the specified torque value. Install ball (14) and setscrew (13) in the locknut. Tighten the
setscrew to the specified torque value.
17. Clean the remaining threads in the setscrew hole of the locknut. Make sure the remaining threads
are clean and dry. To prevent setscrew (13) from loosening, apply 5P-3321 Fast Cure Epoxy in the
threaded setscrew hole. Make sure the epoxy is even with the outside surface of the locknut after
application.
18. Install two rings (17), two rings (18), two rings (19) and seal assembly (20) on piston (21).
Lubricate the outside of the piston with 1P-0808 General Purpose Lubricant.
19. Using Tooling (A), Install cylinder assembly (22) on the rod assembly. Install 12 bolts (6) that
hold head (23) to the cylinder assembly. Tighten bolts (6) with the rod assembly fully extended.
Tighten the bolts to the specified torque value.
20. Lower the temperature of bearing (26). Using Tool (C), install the bearing the pin bore of the rod
assembly. Install the bearing until it is centered in the bore. Using Tool (C), install two lip seals (25)
in the pin bore of the rod assembly. Install the seals with the sealing lips facing out and until they
make contact with the bearing.
21. Lower the temperature of bearing (12). Using Tool (C), install the bearing the pin bore of the
cylinder assembly. Install the bearing until it is centered in the bore. Using Tool (C), install two lip
seals (11) in the pin bore of the cylinder assembly. Install the seals with the sealing lips facing out
and until they make contact with the bearing.
22. Install grease fitting (10) in the cylinder assembly. Install grease fitting (10) in the rod assembly.
Tighten the grease fittings to the specified torque value.
End By:
a. install bucket cylinder
Copyright 1993 - 2019 Caterpillar Inc.
All Rights Reserved.
Sun Oct 27 12:20:49 UTC+0800 2019
7/8
2019/10/27

Shutdown SIS
Previous Screen
Product: EXCAVATOR
SENR16470006
Stick Cylinder
SMCS - 5458-010; 5458-017
Remove & Install Stick Cylinder
mandates.
At operating temperature, the hydraulic oil is hot and under pressure.
Hot oil can cause burns. To prevent possible personal injury, release the
pressure in the implement hydraulic circuits (boom, stick and bucket)
before any hydraulic lines or components are disconnected and
removed.
1. Release the pressure in the implement hydraulic circuits (boom, stick, and bucket) before any
hydraulic lines or components are disconnected or removed as follows:
a. Start the engine. Fully extend the stick and bucket. Lower the stick and bucket to the ground.
b. Shut off the engine, and place key in the "ON" position. Put the hydraulic activation control lever
in the "UNLOCK" position.
c. Move the control levers for boom, stick and swing to all full stroke positions. This will release
any pressure that might be present in the pilot system.
1/6
2019/10/27

d. Return the key to "OFF" position.
e. Slowly loosen the fill plug on the hydraulic tank, and release the pressure.
f. Tighten the fill plug on the hydraulic tank to as torque of 68 ± 7 N·m (50 ± 5 lb ft).
g. The pressure in the hydraulic system has been released and lines and components can be removed.
2. Fasten a hoist to stick cylinder (3) as shown.
3. A small amount of oil will drain from tube assemblies (4) when they are disconnected. Disconnect
two tube assemblies (4) at the head end of the stick cylinder. Put plugs in the ends of the tube
assemblies to prevent oil loss and to keep contaminants out of the hydraulic system. Disconnect
lubrication line (7) for the mounting pin assembly at the head end of the stick cylinder.
4. Remove pin assembly retaining bolt (1), the washer, pin assembly (2) and the spacer. Remove pin
assembly retaining bolt (6), the washer, pin assembly (5) and the spacer. Remove stick cylinder (3).
The weight of the stick cylinder is 297 kg (655 lb).
NOTE: Machines may be equipped with shims between the stick cylinder and boom at the stick
cylinder-to-boom pin joint and at the stick cylinder and stick at the stick cylinder-to-stick pin joint.
For assembly purposes, put identification marks on the shims as to their location.
5. Remove the shims (if so equipped) at the stick cylinder-to-boom pin joint and the stick cylinder-to
-stick pin joint.
NOTE: The following steps are for installation of the stick cylinder.
6. Make sure the pin bores in the stick cylinder, boom and stick are clean and free of dirt prior to
installation of the stick cylinder.
7. Fasten a hoist to stick cylinder (3), and put in position on the boom and stick. Make sure the pin
bores in the stick cylinder are in alignment with the pin bores in the stick and boom.
8. Apply 5P-0960 Multipurpose Grease on pin assemblies (2) and (5). Temporarily install the two
pin assemblies. Do not remove the hoist from the stick cylinder at this time.
2/6
2019/10/27

Typical Example
9. Slide the stick cylinder to one side until it makes contact with the boom and the stick. Measure the
total clearance between the stick cylinder and the boom and the stick cylinder and stick at each pin
bore. The total clearance of (a) and (b) must not be more than 1.0 mm (.04 in) at each pin bore. If
the total clearance is less than 1.0 mm (.04 in), the addition of shims between the stick cylinder and
boom or the stick cylinder and stick will not be required. If the total clearance is more than 1.0 mm
(.04 in), add the correct thickness of shims to obtain the necessary clearance.
10. If it has been determined that shims need to be installed between the stick cylinder and boom
and the stick cylinder and stick, remove pin assemblies (2) and (5). Install the shims between the
stick cylinder and boom and the stick cylinder and stick on the side opposite the pin assembly
retaining bolts; then reinstall the spacers and pin assemblies (2) and (5). Install pin assembly
retaining bolts (1) and (6) that hold the pin assemblies in position. Tighten bolts (1) and (6) to a
torque of 325 ± 40 N·m (240 ± 30 lb ft).
11. Check the condition of the O-ring seals in tube assemblies (4). If the seals are damaged, use new
parts for replacement. Connect tube assemblies (4) to the stick cylinder. Connect lubrication line (7)
to the stick cylinder.
12. Fill the hydraulic oil tank with oil to the correct level. Lubricate the support pins for the stick
cylinder. Refer to the Operation & Maintenance Manual for the correct procedure.
13. Start the machine, and run it at low idle speed. Move the control lever for the stick cylinder so
the cylinder rod extends to its halfway position; then retract the cylinder rod. The cylinder should be
cycled this way approximately ten times to remove the air from the hydraulic system. Recheck the
oil level in the hydraulic oil tank.
Disassemble & Assemble Stick Cylinder
3/6
2019/10/27

Suggest:
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Please download this document
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Start By:
a. remove stick cylinder
NOTE: Several different stick cylinder groups are available. The disassembly and assembly
procedure which follows is similar for the stick cylinder groups. However, reference must be made
to the 322B & 322B L Excavator Attachments Specifications module, SENR1637, for the correct
specifications for a specific stick cylinder group.
mandates.
4/6
2019/10/27

Caterpillar Cat 322B L EXCAVATOR (Prefix 5CR) Service Repair Manual Instant Download.pdf

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