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17
MAINTENANCE (Continued)
TRAVERSE SHAFT/LINEAR BEARING
REPLACEMENT
To replace the traverse shafts or the linear bearings in
the Spin or Relief assembly, first remove the left side
cover panel.
REMOVE GRINDING SHAFT:
Next you will need to remove the grinding shaft. First
move the relief hub away from the relief hub
assemlby (see Replacement of Griniding wheel
section for details). Then remove the grinding motor
belt and pulley (see Grinding Motor Belt
Replacement). Now loosen the setscrews on the
right side bearing to allow the grinding shaft to slide
out of the bearing. Next remove the left side grinding
shaft bearing. The grinding shaft is heavy so take
appropriate measures when lifting or removing. To
remove the grinding shaft lift up on the left end and
slide the shaft out of the right side bearing. Set the
shaft on the floor or bench out of the way.
REMOVE THE TRAVERSE BELT:
(See Traverse Belt Replacement section)
REMOVING THE TRAVERSE SHAFTS:
To remove the traverse shafts use the vertical
adjusters to lower both grinding shaft support arms
until they are in there lowest position. Now remove
the left grindng shaft support arm. To remove the left
arm, first remove the bolt at the rear of the machine.
(It may be necessary to clamp onto the shaft that the
bolt is screwed into so that it does not spin.) After
removing the bolt, pull the arm off the rear shaft. Now
move the arm toward the rear of the machine to
disengage the front of the arm from the vertical
adjuster. Next pull the arm away from the grinder
and off the traverse shafts. (Note, the shafts may
come out of the right side arm so support the shafts.)
Slide the Spin and Relief Grinding Head Assemblies
off the traverse shafts.
Replace the shafts if necessary.
REPLACING THE TRAVERSE BEARING:
To replace the traverse bearings, press the bearings
out of the bearing housing. Slide in the new bearings
and secure in place with the seals. (Two bearings go
in the front and 1 bearing the rear of the housing).
Fig. 14
THE GRINDING SHAFT WEIGHS 75LBS
[34 Kg] USE APPROPRIATE LIFTING
DEVICES TO AVOID INJURY.
TO REASSEMBLE:
Clean the 2 spherical bearings in the right arm
and place the traverse shaft into the bearings.
(The shafts should slide into the bearings.
There is very minimal clearance so the shafts
need to be preciesly aligned for the shafts to
slide into the bearings.) Next slide the grinding
head assemblies (spin first then relief) onto the
traverse shafts. Now, clean the bearing in the
left arm. Then align the bearings in the left arm
to the two traverse shafts. The shafts should
slide into the bearings. Reinstall the left arm
into the vertical adjuster housing and onto the
rear support shaft. Reinstall the rear pivot bolt
and tighten. Continue to install the traverse
belt, grinding shaft, and grinding motor belt.
See the sections on Traverse Belt Replace-
ment, Replacement of Grinding Wheel, Grind-
ing Motor Belt Replacement, Traverse Belt
Tension, and Relief Grinding Head Bearing
Adjustments for addtional details.
2. REMOVE REAR PIVOT BOLT
1. REMOVE GRINDING
SHAFT AND
TRAVERSE BELT
3. LIFT ARM OFF REAR
PIVOT SHAFT AND SLIDE
ARM BACK THEN OUT.