B. BEARING HOUSING LUBRICATION
1. Unplug grinder from power source and perform lockout/tagout procedures.
2. Unlatch tray, lift front slightly and slide toward back of machine. Lift tray from machine and set aside.
3. Unbolt case top cover and remove.
4. Check and relubricate with good grade of lithium bearing grease semi-annually.
5. Reinstall case top cover and bolt on tightly. Reinstall tray and latch securely.
C. ROLLER CHAIN AND DRIVE SPROCKET LUBRICATION
Chains should be protected against dirt and moisture. Chain life will vary appreciably depending upon lubrication.
The better the lubrication, the longer the chain life.
Lubrication effectiveness will vary with the amount of lubrication and frequency of application. Ideally, a lubricant
film should always be present between the working parts. Manually lubricate the chain after the 1st 6 weeks then ev-
ery 6 months thereafter.
Lubricating just the outside of the chain does little good. Apply lubrication on the inside of the chain span so that
it will work through the moving parts and joints by centrifugal force as the chain rotates and reach the area where one
surface “scrubs” another.
Recommended types of chain lubricant are those with Molybdenum Disulphide or Graphite added. Also bonded
lubricants such as Dow Corning’s Molykote 321R or equivalent are excellent for open chains. The lubricant should be
of a viscosity whereby it will “flow” somewhat and penetrate the internal working surfaces. Thick stiff greases are of lit-
tle value because they cannot work into moving parts of the chain.
Symptoms of inadequate lubrication:
1. Excessive noise
2. Chain becomes stiff.
3. Chain runs hot.
4. Broken pins, bushings or rollers.
5. Excessive chain elongation — caused by wear on the pin outside diameter and bushing inside diameter.
Once a chain is elongated or worn past acceptable limits, jumping of sprocket teeth and/or improper
chain/sprocket mesh will occur.
LUBRICATING CHAIN AND SPROCKETS
1. Unplug grinder from power source and perform lockout/tagout procedures.
2. Unlatch tray, lift front slightly and slide toward back of machine. Lift tray from machine and set aside.
3. Unbolt case top cover and remove.
4. Spray or brush lubricant on inside of chain, slowly and carefully turning large sprocket by hand.
5. Reinstall case top cover and bolt on tightly. Reinstall tray and latch securely.
C. MAIN DRIVE CHAIN TENSION
1. Unplug grinder from power source and perform lockout/tagout procedures.
2. Remove feed tray.
3. Loosen motor mounting bolts.
4. Remove shims from under the motor. Important to remove same shims from back of motor as from the
front for proper sprocket alignment.
5. Total chain flex should be
1
8
"to
3
8
" for proper chain tension. Do not over tension as this can cause excessive
wear or premature failure of motor and bearing box bearings.
6. Retighten all motor mounting bolts.
7. Reinstall feed tray.
9
To Next Page
Loading...
