Maintenance - Greenlee 1399 Instruction Manual

Maintenance

Brushes
• Clean the brushes frequently in kerosene or a solvent.
• To use both rows of bristles, remove and install them
on the opposite side of the blade.
• When replacing the brushes, attach them so the
bristles are turned in the same direction that the blade
travels.
Lubrication
Remove dust and dirt before lubricating.
• Use Marfak Grade "O" Grease or equivalent in the
gear case.
• Use light or heavy grease on the vise adjusting screw.
• Lubricate the internal ring gear and pinion with a good
quality, medium grade, fibrous type of grease.
• Lubricate the ball bearings with a good quality ball
bearing grease.
• Lubricate the cutting head pivot bar periodically with a
few drops of machine oil.
• Follow the motor manufacturer's instructions for motor
lubrication.
Overload Shut-Off and Reset
The motor automatically shuts off if it is overloaded or
overheated. If the motor shuts off:
1. Disconnect the saw from the power supply.
The blade and other saw components may be hot.
Contact with hot surfaces can cause severe burns.
Failure to observe this warning can result in injury.
2. Raise the cutting head to the vertical position.
Examine the saw and the item to determine the
cause of the shut-off.
3. Check the saw blade for damage.
4. Lower the cutting head and allow the motor to cool.
5. See the reset instructions on the motor housing.
6. Reposition the item to begin a new cut. Tighten the
vise.
7. Reconnect the saw to the power supply.
Greenlee Textron / Subsidiary of Textron Inc.
1399 and 1399-22 Band Saws
Dash Pot
The dash pot assembly slows the downward travel of
the cutting head; this prevents the cutting head from
falling.
The dash pot is hydraulic. See the Exploded View—
Switch and Dash Pot Details. If it becomes necessary to
add oil, disassemble the dash pot and add oil to within
1" of the top of the inside tube (46). Use Cities Service
"Amplex 05" or equivalent.
Cutting Head Weight Adjustment
The cutting head should exert approximately 10 lbs. of
force. To check the amount of force it exerts, disconnect
the power supply and attach a hook-type scale to the
handwheel. See the Exploded View—Switch and Dash
Pot Details. Loosen the cap screw (20) and move the
clamp (38) upward to increase the tension (or down-
ward to decrease the tension). Tighten the cap screw.
Checking and Adjusting the Blade Guide Ball
Bearings
See the Exploded View—Blade Guides and Gear Box
Details. Six ball bearing blade guides (32) keep the
blade aligned. Periodically remove the blade and check
the condition of the ball bearings. Lubricate bearings
that do not turn freely and replace bearings that show
signs of wear or damage.
The bearings should be snug against the side of the
blade. To check for proper adjustment:
1. Disconnect the saw from power supply.
2. Raise the cutting head to the vertical position.
• The blade is sharp and can cut even when
stationary. Failure to observe this warning can
result in injury.
• The blade and other saw components may be
hot. Contact with hot surfaces can cause severe
burns. Failure to observe this warning can result
in injury.
3. Twist the blade. The bearings should be snug
enough to restrict the blade. If the blade twists
between the bearings, rotate the eccentric roller
axle (34) until the bearing is snug against the blade.
10 4455 Boeing Dr., Rockford, IL 61109-2988 815/397-7070