Caterpillar Cat 307E Mini Hydraulic Excavator (Prefix H1Y) Service Repair Manual (H1Y00001 and up)

Service Repair Manual

Models

307E Mini Hydraulic Excavator

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Disassembly and Assembly 307E Mini Hydraulic Excavator Machine Systems Media Number -KENR9862-05

Publication Date -01/09/2015

Date Updated -11/06/2018

i05137710

Blade Cylinder - Remove and Install SMCS - 7562-010-BG

Removal Procedure

At operating temperature, the hydraulic oil is hot and under pressure.

Hot oils can cause burns.

To prevent possible personal injury, release the pressure in the work tool hydraulic circuit (boom, stick, bucket, and swing), travel circuits, and the hydraulic oil tank at the filler cap before any hydraulic lines or components are disconnected or removed.

Remove the filler cap only when the engine is stopped and the filler cap is cool enough to touch.

Cylinders equipped with lock valves can remain pressurized for very long periods of time, even with the hoses removed.

Failure to relieve pressure before removing a lock valve or disassembling a cylinder can result in personal injury or death.

Ensure all pressure is relieved before removing a lock valve or disassembling a cylinder.

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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 CatÂŽ products.

Dispose of all fluids according to local regulations and mandates.

Note: Put identification marks on all hoses. Plug all hose assemblies. This action helps to prevent fluid loss, and this action also helps to keep contaminants from entering the system.

1. Rotate the machine in order to expose the blade cylinder.

2. Release the hydraulic system pressure. Refer to Disassembly and Assembly, "System Pressure - Release".

Illustration 1

g01522230

3. Remove bolts (1). Remove cover (2).

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Illustration 2

g01522239

4. Disconnect hose assemblies (3).

Illustration 3

g01522248

5. Attach a suitable lifting device to blade cylinder (6). The weight of blade cylinder (6) is approximately 69 kg (152 lb).

6. Remove retaining bolt (4) and (8). Remove pin assemblies (5) and (7).

7. Remove blade cylinder (6).

Disassembly and Assembly Procedure Table 1 Required Tools Tool

Part Number

A

-

Part Description Loctite 609

Qty 1

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Cylinders equipped with lock valves can remain pressurized for very long periods of time, even with the hoses removed.

Failure to relieve pressure before removing a lock valve or disassembling a cylinder can result in personal injury or death.

Ensure all pressure is relieved before removing a lock valve or disassembling a cylinder.

Illustration 4

g03295959

(1) Tighten elbow adapter to a torque of 9.32 ± 4.9 N·m (82 ± 43 lb in).

(2) Pin bores to be lubricated and free of paint.

(3) Pin bores to be lubricated and free of paint.

(4) Lubricated the threads lightly with oil prior to tightening. Tighten the head to a torque of 1020 ± 100 N·m (752 ± 74 lb ft).

(5) Tighten nut so a torque of 5550 N·m (4094 lb ft).

(6) Tighten screw to 60 ± 11 N·m (44 ± 8 lb ft).

(7) Prior to assembly apply Tooling (A) to the wiper seal groove.

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(8) Lubricate the sealing lip lightly with the lubricant that is being seals.

Installation Procedure Table 2 Required Tools Tool

Part Number

Part Description

Qty

A

5P-0960

Grease Cartridge

1

Note: Check the condition of the seals and the bearings. If the seals or bearings are worn or damaged, use new parts for replacement.

Illustration 5

g01522248

1. Attach a suitable lifting device to blade cylinder (6). The weight of blade cylinder (6) is approximately 69 kg (152 lb).

2. Position blade cylinder (6) onto the chassis and the blade.

3. Prior to installing pin assemblies (5) and (7), check that the bore is free of paint and grease.

Install pin assemblies (5) and (7).

4. Install retaining bolts (4) and (8). Tighten retaining bolts (4) and (8) to a torque of 70 ± 15 N·m (52 ± 11 lb ft). Remove the suitable lifting device.

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Illustration 6

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g01522239

5. Connect hose assemblies (3).

Illustration 7

g01522230

6. Position cover (2) and install bolts (1).

Copyright 1993 - 2020 Caterpillar Inc.

Tue Jan 21 15:42:33 UTC+0800 2020

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Shutdown SIS Previous Screen Product: MINI HYD EXCAVATOR Model: 307E MINI HYD EXCAVATOR H1Y Configuration: 307E Mini Hydraulic Excavator H1Y00001-UP (MACHINE) POWERED BY C2.6 Engine

Disassembly and Assembly 307E Mini Hydraulic Excavator Machine Systems Media Number -KENR9862-05

Publication Date -01/09/2015

Date Updated -11/06/2018

i05377974

Blade - Remove and Install SMCS - 6060-010

Specifications

Illustration 1

g02906219

Table 1 Specification for 303-6184 Blade and Mounting Gp Item

Qty

Part

Specification Description

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All bores must be free of paint. Use 5P-0960 Grease Cartridge in order to lubricate the bores for the pins.

1

1

137-9097 Pin As

Diameter is 59.89 ± 0.03 mm (2.358 ± 0.001 inch).

2

2

8T-4179 Bolt

Torque to 70 ± 15 N·m (52 ± 11 lb ft).

3

4

093-1430 Lip Type Seal

Lubricate the sealing lip of the lip type seals lightly with the lubricant that is being sealed. Install the dust seal so that the lip faces outside, as shown. Install the lip type seals so that the lip type seals do not extend beyond the face of the boss.

4

2

8T-4176 Bolt

Torque to 70 ± 15 N·m (52 ± 11 lb ft).

5

2

8T-4244 Nut

Position the nut (6) to the distance 0.5 mm (0.02 inch) past the end of the bolt. For locking, tighten the nut (5) against the nut (6).

6

2

8T-4244 Nut

7

2

5I-9543 Pin

8

2

218-5429 Bushing

Bore of the bushing before installation is 45.200 ± 0.015 mm (1.7795 ± 0.0006 inch).

Installation depth is 5.0 ± 0.8 mm (0.20 ± 0.03 inch).

9

1

137-9269 Pin As

Diameter is 59.89 ± 0.03 mm (2.358 ± 0.001 inch).

Diameter is 44.885 ± 0.025 mm (1.7671 ± 0.0010 inch).

Removal Procedure Table 2 Required Tools Tool

Part Number

A

1U-9200

Lever Puller Hoist

1

1P-1832

Adapter

1

FT-1410

Sleeve

1

4C-9633

Puller Stud

1

9U-6833

Nut

1

6V-3160

Double Acting Cylinder

1

3S-6224

Electric Hydraulic Pump Gp

1

5P-8250

Washer

1

B

Part Description

Qty

Start By:

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a. Remove the blade cylinder. Refer to Disassembly and Assembly, "Blade Cylinder - Remove".

1. Release the hydraulic system pressure. Refer to Disassembly and Assembly, "System Pressure - Release".

Illustration 2

g01522135

2. Reinstall pin (1) and hand tighten the bolt.

Illustration 3

g01522139

Illustration 4

g01522153

3. Attach a suitable lifting device and Tooling (A) in order to support blade (2). The weight of blade (2) is approximately 263 kg (580 lb).

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4. Remove retaining bolt (3) and nuts (5). Remove pin (4). Repeat for the other side.

5. Use Tooling (A) and the suitable lifting device in order to remove blade (2).

Illustration 5

g01522160

6. Remove seals (6). Use Tooling (B) in order to remove bearings (7).

Installation Procedure Table 3 Required Tools Tool

Part Number

Part Description

Qty

A

1U-9200

Lever Puller Hoist

1

C

1P-0510

Driver Gp

1

D

5P-0960

Grease Cartridge

1

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Illustration 6

g01522160

1. Lower the temperature of bearings (7). Use Tooling (C) in order to install bearings (7) and seals (6).

Illustration 7

g01522139

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Illustration 8

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g01522153

2. Attach a suitable lifting device and Tooling (A) in order to position blade (2) onto the chassis.

The weight of blade (2) is approximately 263 kg (580 lb).

3. Apply Tooling (D) to pin (4). Install pin (4). Install retaining bolt (3) and nuts (5). Repeat for the other side.

Illustration 9

g00356648

4. Use the following procedure in order to tighten all the nuts: a. Position the outside nut even with the end of the retaining bolt or 0.5 mm (0.02 inch) beyond the end of the retaining bolt. b. Tighten the inside nut against the outside nut to a torque of 70 ± 15 N·m (50 ± 10 lb ft).

5. Remove Tooling (A) and the suitable lifting device.

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Illustration 10

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g01522135

6. Remove the bolt and pin (1) in order to install the blade cylinder.

End By: a. Install the blade cylinder. Refer to Disassembly and Assembly, "Blade Cylinder - Install".

Copyright 1993 - 2020 Caterpillar Inc.

Tue Jan 21 15:43:29 UTC+0800 2020

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Shutdown SIS Previous Screen Product: MINI HYD EXCAVATOR Model: 307E MINI HYD EXCAVATOR H1Y Configuration: 307E Mini Hydraulic Excavator H1Y00001-UP (MACHINE) POWERED BY C2.6 Engine

Disassembly and Assembly 307E Mini Hydraulic Excavator Machine Systems Media Number -KENR9862-05

Publication Date -01/09/2015

Date Updated -11/06/2018

i02992650

Bucket - Remove SMCS - 6101-011

Removal Procedure NOTICE To facilitate removal of the bucket pins without causing damage to the pins, the bearings, and/or the O-ring seals put the bucket on the floor and the stick in a vertical position, as shown.

1. Position the bucket, the stick and the bucket control linkage on the ground.

Illustration 1

g00534630

Note: Relieve the pressure on the bucket pins by moving the stick up and down.

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Illustration 2

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g00880305

2. Remove the nuts and retaining bolt (5) and remove bucket pin (4).

3. Pull link assembly (1) away from the bucket. Remove two O-ring seals (3).

4. Remove the nuts and retaining bolt (2).

Illustration 3

g01517271

5. Remove nuts (6) and retaining bolt (7).

6. Remove pin (8) and the O-ring seals. Separate the stick from bucket (9).

Note: The weight of the bucket (9 ) is approximately 240 kg (530 lb).

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Shutdown SIS Previous Screen Product: MINI HYD EXCAVATOR Model: 307E MINI HYD EXCAVATOR H1Y Configuration: 307E Mini Hydraulic Excavator H1Y00001-UP (MACHINE) POWERED BY C2.6 Engine

Disassembly and Assembly 307E Mini Hydraulic Excavator Machine Systems Media Number -KENR9862-05

Publication Date -01/09/2015

Date Updated -11/06/2018

i02992661

Bucket - Install SMCS - 6101-012

Installation Procedure Table 1 Required Tools Tool

Part Number

Part Description

Qty

A

5P-0960

Grease Cartridge

1

Note: Make sure that the stick pin bore, the bucket pin bores, the bucket pins, the flange and the O -ring seals are thoroughly clean prior to installation of the bucket.

Note: Check the condition of the O-ring seals. If the O-ring seals are worn or damaged, use new parts for replacement.

Illustration 1

g01517271

Note: The weight of the bucket (9 ) is approximately 240 kg (530 lb).

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1. Lower the stick into bucket (9) and align the pin bores. Move the bucket until one side of the bucket makes contact with the stick. Measure the clearance between the bucket and the stick.

2. Apply Tooling (A) on bucket pin (8). Install bucket pin (8) and the O-ring seals. Align the retaining bolt hole in the bucket pin with the retaining bolt hole in the bucket. Install retaining bolt (7) and nuts (6).

Illustration 2

g00880305

3. Align the pin bore in link assembly (1) with the pin bores in the bucket.

4. Apply Tooling (A) on bucket pin (4). Install bucket pin (4) and O-ring seals (3).

5. Align the retaining bolt hole in the bucket pin with the retaining bolt hole in the bucket.

Install retaining bolt (5) and the nuts.

Illustration 3

g00357378

6. Use the following procedure in order to tighten all the nuts:

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a. Position the outside nut even with the end of the retaining bolt or 0.5 mm (0.02 inch) beyond the end of the retaining bolt. b. Tighten the inside nut against the outside nut to a torque of 70 ± 15 N·m (50 ± 10 lb ft).

7. Lubricate the bucket control linkage. Refer to Operation and Maintenance Manual, SEBU7421, "Bucket Linkage - Lubricate" for the correct procedure.

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