8
5. Remove chain (5, Fig.10) from sprocket.
6. Install replacement chain making certain
chain is properly positioned onto drive
and idler sprockets. Install tension
regulator spring (4, Fig.10).
CAUTION: All three drive sprockets must
be level (same height). Measure distance
from top of each jack screw to top of drive
sprocket.
7. Adjust drive chain for correct tension by
loosening the four motor sprocket
bracket mounting blots (7, Fig.10), and
moving the sprocket in the proper
direction to the distance from the center
of the two idler sprocket retaining
screws is 6–¼” minimum to 6-1/2”
maximum as shown (see Fig. 9). It is
IMPORTANT this distance is
maintained.
8. The four sprocket bracket mounting
bolts (7, Fig.10) must be securely
tightened. Check the two side flange
bearing mounting bolts (8, Fig.10) and if
necessary, retighten. Recheck the chain
adjustment.
9. Reinstall drive sprocket covers and ram
top brace
10. Manually rotate motor sprocket
clockwise to check for free operation of
ram drive mechanism.
MOTOR DRIVE BELT
To remove:
1. Remove top and top frame cover plate.
2. Locate ram approximately 4 inches from
top position. Ram can be operated
manually by using the 5/8” socket on the
motor sprocket (6, Fig.11).
3. Remove chain tension regulator spring
(4, Fig.10).
4. Loosen four motor mounting bolts (2,
Fig.10). Slide motor toward sprocket
drive pulley and remove belt.
To replace:
5. Position belt around motor sprocket
drive pulley.
6. Move belt toward motor and around
motor pulley making certain teeth in belt
are meshed in both sprocket drive pulley
and motor pulley.
7. Slide motor toward front and finger
tighten mounting blots (2, Fig.10)
