918-I Heavy Duty Roll Grooving Machine
Ridge Tool Company
10
Removing and Installing Groove Roll
and Drive Shaft
NOTE! As groove dimensions are determined by the roll
set geometry, specific roll sets are required when
grooving the following:
• 2
″
– 6
″
Schedule 10, 40
• 8
″
– 12
″
Schedule 10, 8
″
Schedule 40
• 2
″
– 6
″
Copper tubing (Types K, L, M, DWV)
• 1
″
Schedule 10, 40
• 1
1
/
4
″
- 1
1
/
2
″
Schedule 10, 40
Make sure machine is unplugged from
power source before changing the roll sets.
When removing groove rolls and shafts,
be sure they are properly supported. Failure to provide
support may cause them to drop suddenly.
Removing and Installing Roll Sets with
Solid Drive Shafts (2
″
– 6
″
, 8
″
– 12
″
)
1. Removing Groove Rolls:
• Fully raise the upper roll assembly by moving the
pump release lever to the DOWN position.
• Loosen set screw in grooving roll and remove
groove roll shaft and groove roll
(Figures 11 & 12).
2. Removing Solid Drive Shaft:
• Open motor and transmission cover.
• Use
3
/
16
″
hex key to loosen the two screws on the
front half of the transmission coupling
(Figure 13).
Figure 13 – Loosen the Two Screws on the Transmission
Coupling
• Use the spanner wrench to loosen and remove the
drive shaft retaining nut
(Figure 14).
• Remove drive shaft
(Figure 15).
Figure 14 – Loosen and Remove Drive Shaft Retaining Nut
3. Installing Solid Drive Shaft aligning hex with opening
in coupling.
• Install new drive shaft through the 918-I housing and
the drive shaft bearing retaining nut (with text out),
aligning hex with opening in coupling.
• Use spanner wrench to tighten the drive shaft bear-
ing retaining nut.
• Tighten transmission coupling set screws.
• Close motor and transmission cover.
Do not use groover with motor cover re-
moved or open.
4. Installing Groove Roll:
• With upper roll housing fully raised and drive shaft
in place, insert groove roll into upper roll assembly
and fully insert upper roll shaft through bearings
and groove roll.
WARNING
WARNING
Figure 11 – Loosen Set
Screw in
Groove Roll
Figure 12 – Remove Groove
Roll Shaft and
Groove Roll
WARNING