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

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)