Grizzly H6155 instruction manual Daily Maintenance, Lubrication, To replace the carbon brushes

Figure 6. Brush installation.

2. Examine the brush surface for pit- ting or cracking. If the brush is damaged or is less than an 1/8" long, replace with a replacement brush from Grizzly Industrial, Inc.

3. If the brush is not broken and is dirty, gently rub with a pencil eraser until all of the dirt has been removed. Remove all eraser dust so it will not interfere with the machine.

Carbon Brush Replacement Carbon brush life is 500–2000 hours, depending on the type of use. Always replace both brushes at the same time.

MAINTENANCE

Daily Maintenance

These items should be done after each use.

1.Wipe the motor housing, flex shaft,

	and tool bits with a dry cloth or blow	To replace the carbon brushes:
	off dust and debris with compressed
	air.	1. Use a small screwdriver to remove
		the caps shown in Figure 6 from
2.	Check for damage to bits, cords, or	the sides of the motor housing. Be
	the housing.	careful when removing the caps, as
Lubrication		the brushes may spring out. Gently
		remove the brush using the tip of the
The flex shaft needs to be lubricated with		screwdriver if it does not spring out.
a light lithium lubricant or machine oil after
25-30 hours of use.
1.	Remove the inner spindle
2.	Wipe a thin film of lubricant on the inner
	spindle. Note: Too much lubricant can
	become messy and possibly get on
	your workpiece. Do not use automo-
	tive grease because it is too thick.
3.	Re-install the inner spindle into the flex
	shaft.

	4. Install the brushes and cap. Run the
	mini grinder	for 5 minutes to seat
	the brushes before using it on a
Model H6155 Rotary Mini Grinder	workpiece.	-9-