4. After changing drive shaft/drive roll, reverse steps to
install. Make sure parts are clean to keep dirt out of
bearings. Lubricate bearings before use.
Figure 20 – Loosening Grooving Roll Set Screw
Figure 21 – Removing Retaining Shaft and Groove Roll
Changing Drive Shaft/Drive Roll:
The 918-I has two styles of drive shaft. A one-piece drive
shaft (used on the 2" – 6" and 8" – 12" sizes) and the two-
piece unit consisting of a drive shaft and interchangeable
drive roll (used for the 1", 1
sizes). See Figure 22.
Drive Shaft
Drive Roll
Figure 22 – One Piece Drive Shaft (Top), Two Piece Drive
Shaft (Bottom)
999-998-676.10_REV. D
/
" to 1
/
" and 2" – 6" Copper
1
1
4
2
Bearing
Retaining Nut
Bearing
Hex Bolt
918-I Roll Groover
Changing Drive Shaft
1. Use
/
" hex key to loosen the two screws on the front
3
16
half of the transmission coupling (Figure 23).
Figure 23 – Loosen the Two Screws on the Transmission
Coupling
2. Use the spanner wrench to remove the drive shaft
bearing retaining nut.
Figure 24 – Loosen and Remove Drive Shaft Retaining
Nut
3. Remove the drive shaft from the front of the groover
(Figure 25).
4. Install new drive shaft through the housing and drive
shaft bearing retaining nut (with text out), aligning hex
with opening in coupling. Make sure parts are clean
to keep dirt out of bearings. Lubricate bearings before
use.
5. Use spanner wrench to tighten the drive shaft bearing
retaining nut.
6. Tighten transmission coupling set screws.
7 . Close transmission cover and secure.
Changing Drive Roll (Two-Piece Drive Shafts)
1. Remove the groove roll.
2. Swing open transmission cover.
15