Loader Bobcat 773. Manual - part 16

TS–01097

HYDRAULIC CYLINDER IDENTIFICATION

Lift Cylinder Components

  1.

Case

  2.

Piston

  3.

Head

  4.

Rod

  5.

Spacer

  6.

O–ring

  7.

Nut

  8.

Ring

  9.

O–ring

10.

O–ring

11.

Washer

12.

Seal

13.

Seal

14.

Plug

15.

O–ring

16.

Tube

5

9

8

2

7

14

15

16

15

14

1

6

4

13

12

3

11

10

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773 BICS Loader

Service Manual

TS–01127

HYDRAULIC CYLINDER IDENTIFICATION (Cont’d)

Tilt Cylinder Components

  1.

Case

  2.

Piston

  3.

Head

  4.

Rod

  5.

Nut

  6.

Seal

  7.

O–ring

  8.

O–ring

  9.

Washer

10.

O–ring

11.

Seal

12.

Seal

13.

Bushing

14.

Tube

15.

O–ring

16.

Plug

17.

Clamp

18.

Nut

15

1

18

5

14

17

2

6

7

8

9

10

4

12

11

3

16

13

13

MC–01688

MC–01688

Revised June 01

773 BICS Loader

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Service Manual

HYDRAULIC CYLINDERS

Disassembly

Tools necessary for the disassembly/assembly
procedures:

MEL1074 – O–ring Seal Hook
MEL1075 – Adjustable Gland Nut Wrench
MEL1396 – Seal Installation Tool
MEL1033 – Rod Seal Installation Tool
Piston Ring Compressor

NOTE: The drawings may not show the cylinder

exactly as it appears, but the procedure is
correct for all cylinders.

See the Service Manual for your model loader to find the
correct information for removing and installing the
cylinder.

Put the base end of the hydraulic cylinder in a drain pan.
Move the rod in and out to remove the fluid from the
cylinder. Move the rod slowly so the fluid will go directly
into the drain pan.

Put the base end of the cylinder in a vise.

Use the adjustable gland nut wrench to loosen the head
[A].

Remove the rod assembly from the cylinder case [B].

Remove the cylinder case from the vise.

Put the rod end in the vise.

Remove the nut from the piston end of the rod [C].

Pull the piston off the rod (Item 1) [D].

Pull the head (Item 2) [D] off the rod.

A

B–07000

C

B–07002

D

B–07003

2

1

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773 BICS Loader

Service Manual

B

B–07001

HYDRAULIC CYLINDERS (Cont’d)

Disassembly (Cont’d)

If the head has a seal, remove the seal from the head [A].

Remove the O–ring and back–up washer from the head
[B].

Remove the wiper seal [C].

Remove the oil seal from the head [D].

Revised June 01

A

B–07004

C

B–07005

D

B–07006

773 BICS Loader

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Service Manual

B

B–07199