Loader Bobcat 773. Manual - part 50

SPRING LOADED DRIVE BELT TENSIONER PULLEY

Removal And Installation

Remove the drive belt shield fastener (Item 1) [A].

Remove the belt shield [B].

Loosen and remove the tensioner pulley mounting bolt
(Item 1) [C].

Installation:  Tighten the bolt to 25–28 ft.–lbs. (34–38
Nm) torque.

Remove the belt tensioner pulley from the housing.

Installation: Refer to Page 1–1 in the PREVENTIVE
MAINTENANCE section to adjust the drive belt correctly.

Reverse the removal procedure to install the drive belt
tensioner.

Revised Jan. 99

A

P–03967

1

C

P–08760

1

773 BICS Loader

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Service Manual

B

P–03969

E–02296

SPRING LOADED DRIVE BELT TENSIONER PULLEY (Cont’d)

Identification

  1. Cover
  2. Bolt
  3. Washer
  4. Pins
  5. Washer
  6. Spring
  7. Snap Ring
  8. Snap Ring
  9. Bearing
10. Dust Shield
11. Pulley
12. Bushing
13. Hub
14. Washer
15. Seal
16. Arrow Indicator Plate
17. Locating Pin
18. Spring
19. Shaft
20. Bracket

11

17

12

13

14

15

16

18

19

20

10

9

8

7

5

5

6

4

3

2

1

NOTE: Drive idler parts are not

available individually. Consult
parts catalog for available
sub–assemblies.

Revised Jan. 99

–3–54–

773 BICS Loader

Service Manual

SPRING LOADED DRIVE BELT TENSIONER PULLEY
(Cont’d)

Disassembly

NOTE: There are two different types of spring loaded

drive idlers that have been used. The earlier
version is no longer available and new parts
will need to be ordered. Later in this
procedure these components are shown.

Remove the grease cover (Item 1) [A].

Remove the bolt (Item 1) [B], the flat washer (Item 2) [B],
the retainer washer (Item 3) [B], the spring washer (Item
4) [B] and the second retainer washer (Item 3) [B] from
the pulley assembly (Item 5) [B].

Remove the two pins (Item 1) [C] from the hub assembly
(Item 2) [C] only if they have been damaged.

Remove the bracket assembly (Item 3) [C] by tapping on
the shaft (Item 4) [C] with a plastic hammer.

Remove the spring (Item 1) [D] from the bracket (Item 2)
[D].

A

P–08858

1

C

P–08861

1

2

4

3

D

P–08862

2

1

773 BICS Loader

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Service Manual

B

P–08859

1

4

2

3

5

SPRING LOADED DRIVE BELT TENSIONER PULLEY
(Cont’d)

Assembly

Install the spring (Item 1) [A] on the pulley (Item 2) [A] as
shown.

Install the shaft from the bracket assembly (Item 1) [B]
into the pulley assembly (Item 2) [B] and align the spring
(Item 3) [B] over the alignment pin on the bracket.

Turn the pulley assembly over and install the two pins
(Item 1) [C] into the hub.

Install a punch as shown and turn clockwise while
applying down pressure on the pulley.

Turn until the pulley snaps down into place; this procedure
winds the spring and retains the end of the spring in
proper location [D].

A

P–08871

2

1

C

P–08873

1

D

P–08874

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773 BICS Loader

Service Manual

B

P–08872

1

2

3