Instructions
Part No. Description
31010 Handwheel
31020 Primary Support Arm
31030 Secondary Support Arm
31040 Small Shim Washer
31050 Large Shim Washer (2)
31060 Gear Bushing (2)
31070 Gear Drive Pin
31080 10/32 X 3/8" Set Screw
31090 Sheet Metal Screw, Pan Head, No. 6 X 3/16", Type A
31100 100 Tooth Gear, 56 Pitch (W/ Notch)
31110 100 Tooth Gear, 56 Pitch
40340 10-32 X 1" Skt Hd Cap Screw
40510 10-32 X 3/8" Skt Hd Cap Screw (3)
40330 10-32 X 5/8" Skt Hd Cap Screw
40660 No. 10 Washer
31150 Gear Shaft (2)
31200 20 Tooth Gear, 24 Pitch (2)
31220 22 Tooth Gear, 24 Pitch
31240 24 Tooth Gear, 24 Pitch
Part No. Description
31260 26 Tooth Gear, 24 Pitch
31270 127 Tooth Gear, 56 Pitch
31280 28 Tooth Gear, 24 Pitch
31300 30 Tooth Gear, 24 Pitch
31320 32 Tooth Gear, 24 Pitch
31340 34 Tooth Gear, 24 Pitch
31360 36 Tooth Gear, 24 Pitch
31380 38 Tooth Gear, 24 Pitch
31400 40 Tooth Gear, 24 Pitch
31500 50 Tooth Gear, 56 Pitch
15090 Sliding Shaft
15420 Engagement Lever
15430 Fixed Shaft
40900 10-32 x 3/8" Flat Head Socket Screw
Optional 24 Pitch gears are available for cutting odd numbers of T.P.I., where the last two
numbers before the final zero(s) in the part number represent the number of gear teeth.
Available are sizes 31
210, 31230, 31250, 312700, 31290, 31310, 31330, 31350, 31370
and 31
390.
Parts List, Thread Cutting Attachment
NOTE: Gears shown are for example only. For other
combinations, see accompanying charts (Figure 5).
**31150 Gear Shafts are press fits in 31110 and 31270 Gears.
Figure 6
Exploded ViewExploded View
Exploded ViewExploded View
Exploded View
3100 Thread Cutting Attachment3100 Thread Cutting Attachment
3100 Thread Cutting Attachment3100 Thread Cutting Attachment
3100 Thread Cutting Attachment
P/N 3100, Pg. 7 of 8
31080
31090
31010
31050 (2)
31100
40900
31070
31110*
15090
31150 (2)**
31020
31040
31200
31030
40330
31060
(2)
31040*
40660
40510
15430
31320*
40660
40510
40340
40510
15420
NOTE: Ask for part number 81509 instead of 15090 if using the threading
attachment on a lathe equipped with a Digital Readout. 81509 is slightly longer.