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Model G0768/G0769 (Mfd. Since 8/15)
-73-
Leadscrew & Carriage Rack
Lube Type . . Model SB1365 or ISO 68 Equivalent
Lube Amount ..................................... As Needed
Lubrication Frequency ................................. Daily
Before lubricating the leadscrew and carriage
rack (see Figure 128), clean them first with min-
eral spirits. Use a stiff brush to help remove any
debris or grime. Apply a thin coat of oil along the
entire length of the carriage rack. Use a stiff brush
to make sure oil is applied into the leadscrew
threads.
Note: In some environments, abrasive material
can become caught in the leadscrew lubricant and
drawn into the half nut. In this case, lubricate the
leadscrew with a quality dry lubricant.
Feed Gearbox
Bedways
Lube Type . . Model SB1365 or ISO 68 Equivalent
Lube Amount ..................................... As Needed
Lubrication Frequency ................................. Daily
Before lubricating the bedways (see Figure 128),
clean them with mineral spirits. Apply a thin coat
of oil along the length of the bedways. Move the
steady rest, carriage, and tailstock to access the
entire length of the bedways.
Figure 128. Leadscrew, rack and bedways.
Bedways
Rack
Leadscrew
Lube Type . . Model T23964 or NLGI#2 Equivalent
Frequency ....................... Annually or As Needed
Cross Slide & Compound Slide
Lube Type . . Model SB1365 or ISO 68 Equivalent
Lube Amount ........................................Thin Coat
Lubrication Frequency ................................. Daily
Use the handwheels to separately move the
cross slide and compound rest as far forward as
possible (see Figure 130). Clean the slides with
mineral spirits and wipe down with a rag. Apply
lubricant and move the slides back and forth to
distribute the oil.
Figure 130. Location of bottom slides.
Compound
Bottom Slide
Cross Slide
Bottom Slide
The gearbox can be quickly lubricated (as
necessary or if noisy) by removing the set screw
shown in Figure 107 and adding a shot or two of
grease from a grease gun. The grease inside the
gearbox will eventually need to be replaced. To do
this, remove the gearbox cover, use mineral spirits
and a stiff brush to clean gears, allow them to dry,
reapply new grease, and re-install cover.
Figure 129. Feed gearbox quick lubrication
location.
Set
Screw
Feed Gearbox