Maintenance
Drum Switches
Maintenance doc041620 3-3
3
3.5 Drum Switches
Lubricate the up/down and power feed drum switch contacts inside the control panel every fifty hours
of operation. Use only contact grease supplied by Wood-Mizer. Remove the control panel cover. Use
a cotton swab to apply grease to the switch contact ends.
WARNING! Drum switch grease contains Petroleum Hydrocarbon
Lubricant. Eye and skin irritant. If introduced into eyes, flush with water
for at least 15 minutes. If film or irritation persists, seek medical atten-
tion. Wash skin with soap and water. If ingested, do not induce vomit-
ing - contact a physician. KEEP OUT OF THE REACH OF CHILDREN.
3.6 Blade Tensioner
1. Lubricate the chrome rods of the tensioner system every 50 hours of operation.
2. Lubricate the tensioner screw handle with a grade lithium grease as needed.
3. Add an Automatic Transmission Fluid (ATF) such as Dexron III ATF to the hydraulic blade tensioner
as needed.
See Figure 3-2. To add fluid to the blade tensioner:
Remove the tensioner handle and ball. Remove the blade housing covers, blade and idle-side
blade wheel.
Push the idle-side shaft housing all the way in to collapse the rear tensioner piston and fully
extend the front piston. The front piston should reach the threaded area of the piston guide.
NOTE: If the hydraulic fluid level is extremely low, collapsing the rear piston may not fully
extend the front piston. If it does not, finish the fill procedure in its entirety and repeat. The first
pass should add enough fluid to allow the front piston to fully extend. The second pass should
add enough fluid to completely fill the block.
Locate the fill plug behind the tension gauge. Clean any dirt and debris from the plug area. Use
a 7/16” wrench to remove the plug, making sure to keep the plug o-ring with the plug.
Manually extend the rear piston (the front piston should remain extended).
Use a small funnel or cup to completely fill the block with hydraulic fluid. When full, place the fill
plug in the fill plug hole and thread 1-2 turns. Manually push the rear piston all the way in to
allow excess oil and air to bleed from the system through the plug. Tighten the plug all the way.
Reinstall the idle-side blade wheel, blade and blade housing cover. Reinstall the tensioner ball
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