Maintenance; Keep Machine Clean; General Maintenance; Brush Replacement - Delta 26-2240 Instruction Manual

To reduce the risk of injury, turn unit off and
disconnect it from power source before cleaning or servicing,
before installing and removing accessories, before adjusting
when making repairs. An accidental start-up can cause injury.

KEEP MACHINE CLEAN

Periodically blow out all air passages with
dry compressed air. All plastic parts should be cleaned with a
soft damp cloth. NEVER use solvents to clean plastic parts.
They could possibly dissolve or otherwise damage the material.
Wear certified safety equipment for eye, hearing and
respiratory protection while using compressed air.
Empty dust bag frequently.
When servicing, use only identical replacement parts. Use of
any other parts may create a hazard or cause product damage.

GENERAL MAINTENANCE

Avoid using solvents when cleaning plastic parts. Most plastics
are susceptible to damage from various types of commercial
solvents and may be damaged by their use. Use clean cloths to
remove dirt, dust, oil, grease, etc.

BRUSH REPLACEMENT

The motor on this saw features externally accessible brush
assemblies that should be periodically checked for wear. If the
brushes need to be replaced, refer to Figure 36 and proceed as
follows:
Unplug the saw.
Failure to unplug the saw could result in
accidental starting causing serious personal injury.
Loosen Screws (A) and remove motor end cap (B). Using a flat
head carefully remove the brush cap (C).
NOTE:
Remove the cap slowly. The brush assembly is spring-
loaded and will pop out once the cap is removed.
Remove brush assembly (D).
Inspect both brushes. If either has less than 1/4 in. length of
carbon remaining, both brushes should be replaced.
NOTE:
Do not replace one side without replacing the other.
Insert both brushes into the brush tube (E), making sure the
curvature of the brushes matches curvature of motor. Brush
assembly should move freely within the tube.
Carefully replace the brush cap, ensuring that it is not cross-
threaded.
Tighten brush cap securely. Do not over-tighten.

FAILURE TO START

If your machine fails to start, check to make sure the prongs on the cord plug are making good contact in the receptacle. Also,
check for blown fuses or open circuit breakers in your power supply line. If the saw still does not start, call Company's Customer
Care Center at 1-800-223-7278.

MAINTENANCE

petroleum-based products, penetrating oils, etc., come in
contact with plastic parts. Chemicals can damage, weaken or
destroy plastic which may result in serious personal injury.
Electric tools used on fiberglass material, wallboard,
spackling compounds, or plaster are subject to accelerated
wear and possible premature failure because the fiberglass
chips and grindings are highly abrasive to bearings, brushes,
commutator, etc. Consequently, we do not recommend using
this tool for extended work on these types of materials.
However, if you do work with any of these materials, it is
extremely important to clean the tool using compressed air.

LUBRICATION

All of the bearings in this tool are lubricated with a sufficient
amount of high-grade lubricant for the life of the unit under
normal operating conditions. Therefore, no further lubrication
is required.

TROUBLESHOOTING

23
Do not at any time let brake fluids, gasoline,
E
A
B
Figure 37
D
C