Replacing The Upper And Lower Blade Guides And Thrust Bearings - General International 90-290 Setup & Operation Manual

REPLACING THE UPPER AND LOWER BLADE GUIDES AND THRUST BEARINGS

Blade guides and thrust bearings should be verified each time the blade is replaced. Check if they turn well. If not,
the blade will get stuck or jammed between them and will wear prematurely. Replace the blade guide bearings and
thrust bearing as follows:
B
1.
Turn off the bandsaw and unplug the power cord.
2. Loosen and remove the two phillips screws A
and remove the two see-through guards.
E
4. Using a 10 mm wrench, loosen hex nut D.
5.
Using the supplied 3 mm Allen key, loosen and
remove bolt E.
Model 90-290
I
8. Using a 2.5 mm Allen key, loosen and remove the set
screw I on both left and right red mounts.
9. Install new bearings in the red mounts then re-
tighten the set screw to secure the new bearings in
place.
12. Repeat steps 1 to 7 in reverse order to re-install the blade guide and thrust bearing assembly.
Repeat steps 1 to 12 with the lower blade guide and thrust bearing.
A
D
Model 90-380
I
3. Loosen thumb screw C and remove the blade
guide and thrust bearing assembly from the saw.
F
G
6. Loosen and remove the cap screw F on both red
mounts G, then remove the two red mounts.
7. Remove the thrust bearing and mounting shaft H.
K
J
10. To remove the thrust bearing from it's shaft, J, use C-
ring pliers, K, to remove the "C ring" L, then slide
the thrust bearing off the shaft.
11. Install a new bearing on the shaft then re-install the
"C-ring".
C
F
G
H
L
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