End Gear Configuration Example

Follow the example below to better understand how to configure the end gears for inch threading.

Tools Needed

Qty

Hex Wrench 4 & 5mm

1 Ea

Open-End Wrenches 13 & 14mm

1 Ea

To configure end gears for threading 20 TPI:

1.DISCONNECT LATHE FROM POWER!

2.Locate 20 TPI on gear chart shown in Figure 58.

 

TPI

Gear Setup

TPI

Gear Setup

 

 

 

 

A

B

C

D

 

A

B

C

D

 

40T

12

40

65

 

30

26

40

60

 

65

 

13

40

65

60

65T

28

20

65

 

35

 

Gear

30

 

 

14

40

65

Gear

20

50T

40

 

 

 

35

32

65

 

 

 

16

40

65

 

40

36

20

Gear

45

 

 

 

65

 

 

 

18

40

65

 

45

38

20

50

60

57

 

 

 

40

50

60

57

 

20

65

 

50

 

20 TPI

20

40

65

 

50

44

20

65

 

55

 

 

22

40

65

 

55

48

20

65

 

60

C

 

24

40

65

 

60

52

20

60

 

65

Gear

Figure 58. Locating change gears for 20 TPI.

3.Gather 40T, 65T, and 50T gears per change gear chart. The C gear, which is indicated by a "/", is installed on existing B/C change gear keyed bushing (see Figure 59).

C Gear

 

Keyed Bushing

FrontBack

B Gear

Figure 59. B/C change gear and keyed bushing

(gears removed for clarity).

Note: Depending upon configuration, C gear may not be 20T, as shown in Figure 59.

-44-

4.Remove end cover.

5.Loosen adjuster hex nut shown in Figure 60, pivot adjuster down, and disengage gears.

A Gear

B Gear

 

 

D Gear

C Gear

 

 

Adjuster

Hex Nut

Figure 60. Adjuster hex nut location.

6.Loosen hex nut behind B/C change gear shaft shown in Figure 61, then slide B/C gear away from D gear.

B/C Gear

Hex Nut

 

Cap Screws

& Washers

D Gear

Figure 61. B/C change gear hex nut.

7.Remove cap screws and washers that secure gears, then remove gears.

Note: If any gears are difficult to remove, use a large flat head screwdriver to gently wiggle them off.

Leave existing C gear on keyed bushing. The C gear will not mesh with any of the other gears in this 20 TPI threading setup.

Model G0765 (Mfd. Since 12/13)

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Grizzly MODEL G0765 owner manual End Gear Configuration Example, To configure end gears for threading 20 TPI