Milwaukee 4096 Operator's Manual download pdf (Page 13)

WARNING To reduce the risk of injury,

electric shock and damage to the tool, never

immerse your tool in liquid or allow a liquid

to ﬂ ow inside the tool.

MAINTENANCE

WARNING To reduce the risk of injury,

always unplug your tool before performing

any maintenance. Never disassemble the tool

or try to do any rewiring on the tool’s electrical

system. Contact a MILWAUKEE service facility

for ALL repairs.

Maintaining Tools

Keep your tool in good repair by adopting a regular

maintenance program. Before use, examine the

general condition of your tool. Inspect guards,

switches, tool cord set and extension cord for dam-

age. Check for loose screws, misalignment, binding

of moving parts, improper mounting, broken parts

and any other condition that may affect its safe oper-

ation. If abnormal noise or vibration occurs, turn the

tool off immediately and have the problem corrected

before further use. Do not use a damaged tool.

Tag damaged tools “DO NOT USE” until repaired

(see “Repairs”).

Under normal conditions, relubrication is not neces-

sary until the motor brushes need to be replaced.

After six months to one year, depending on use,

return your tool to the nearest MILWAUKEE service

facility for the following:

• Lubrication

• Brush inspection and replacement

• Mechanical inspection and cleaning (gears, spin-

dles, bearings, housing, etc.)

• Electrical inspection (switch, cord, armature, etc.)

• Testing to assure proper mechanical and electrical

operation

Lubricating Rack and Pinion

Maintain a light coat of MILWAUKEE Type "E"

Grease on the rack and pinion gears to reduce

friction and wear.

Lubricating the Spindle for Dymodrills with a

Shear Pin

Before each use, clean and lubricate the spindle or

spindle sleeve with MILWAUKEE Type "E" Grease

to prevent the spindle from seizing during coring.

1. To maintain the spindle on shear pin models,

remove the retaining ring with a screwdriver.

Then remove the spindle sleeve.

2. Remove dust and debris from the inside and out-

side diameter of the spindle and spindle sleeve

and from the water hole in the spindle. Place a

light coating of MILWAUKEE Type "E" grease on

the spindle.

3. Replace the spindle sleeve onto the spindle.

Make sure the spindle sleeve rotates freely on

the spindle. Then replace the retaining ring.

Cleaning

Clean dust and debris from vents. Keep the tool

handles clean, dry and free of oil or grease. Use

only mild soap and a damp cloth to clean your tool

since certain cleaning agents and solvents are

harmful to plastics and other insulated parts. Some

of these include: gasoline, turpentine, lacquer thin-

ner, paint thinner, chlorinated cleaning solvents,

ammonia and household detergents containing

ammonia. Never use ﬂ ammable or combustible

solvents around tools.

Repairs

If your tool is damaged, return the entire tool to the

nearest service center.

Replacing Vacuum Pad Gaskets

For Cat. No. 4115, 4125 & 4130 only.

Through normal use, the rubber gaskets on the

underside of the vacuum pads can become worn,

requiring replacement. If replacement is required,

take the pad to an authorized service center or

replace the gasket as follows:

1. Remove the old gasket and thoroughly remove

the old glue from the groove.

2. Squeeze a continuous bead of rubber cement (Cat.

No. 44-22-0060) in the entire bottom of the groove.

3. Immediately place a new gasket (Cat. No. 43-

44-0570) in the groove and press ﬁ rmly in place.

4. Turn the pad over and place the gasket side on

a smooth ﬂ at surface and apply pressure to all

edges of the pad.

5. Allow cement to dry for 24 hours before using.

For Cat. No. 4120 only.

With normal use, the rubber gasket on the un-

derside of the base can become worn, requiring

replacement. If replacement is required, take the

base to an authorized service center or replace the

gasket as follows:

1. Remove the motor and bit.

2. Tip the Dymorig on its back so that the wheels

point down.

3. Remove the old gasket.

4. Squeeze a continuous bead of rubber cement (Cat.

No. 44-22-0060) in the entire bottom of the groove.

5. Place the new gasket (Cat. No. 43-44-0605) into

the groove making sure it is pushed in completely.

6. Stand the Dymorig upright again.

7. Reinstall the motor and bit.

Cleaning the Filter on the Vacuum Pump

Periodically clean the ﬁ lter felts to keep the vacuum

pump operating efﬁ ciently. To clean the ﬁ lter felts,

remove the plastic jar and remove the felts from the

plastic tube. Remove dust and debris from the felts

and clean the plastic jar. Then replace the felts on

the plastic tube and position the jar

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Milwaukee 4096 Operator's Manual Page 13

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