MaxPro PROFESSIONAL 111-0904, Manual

6

7

GB

GB

angle then rotate the Mode selector to the Hammer setting.

5. Check that the bit is secured in place. It should not be able to be pulled out of the Chuck.

Chisel Operation

1. Adjust the Auxiliary Handle as needed.

2. Plug in the Power Cord.

3. Squeeze and hold the Trigger to turn on the Rotary Hammer.

4. Allow the Rotary Hammer to reach full speed before contacting the work surface.

5. When finished, to prevent accidents, release the Trigger and disconnect its power supply after use. Pull 

back on the Chuck then remove the bit from the Chuck. Clean, then store the tool indoors out of children’s 

reach.

CLEANING AND MAINTANCE

Maintenance and Servicing

! Procedures not specifically explained in this manual must be performed only by a qualified technician.

WARNING

TO PREVENT SERIOUS INJURY FROM ACCIDENTAL OPERATION:

Release the Trigger and unplug the tool from its electrical outlet before performing any inspection, 

maintenance, or cleaning procedures.

TO PREVENT SERIOUS INJURY FROM TOOL FAILURE:

Do not use damaged equipment. If abnormal noise or vibration occurs, have the problem corrected before 

further use.

Cleaning, Maintenance, and Lubrication

1. BEFORE EACH USE, inspect the general condition of the tool. Check for loose hardware, misalignment or 

binding of moving parts, cracked or broken parts, damaged electrical wiring, and any other condition that 

may affect its safe operation.

2. Monthly, open the Grease Port, clean out old grease, and replace with new grease.

3. AFTER USE, wipe external surfaces of the tool with clean cloth.

4. Lubricate the bit shank with grease each time before installing to maintain the life of the internal 

mechanism.

5. WARNING! If the supply cord of this power tool is damaged, it must be replaced only by a qualified 

service technician.

NOTICE: 

Warranty void if grease maintenance (internal and bit shank) is not followed.

ENVIRONMENT

Do not dispose of electric tools, accessories and packaging together with household waste material 

- in observance of European Directive 2002/96/EC on waste of electric and electronic equipment and its 

implementation in accordance with national law, electric tools that have reached the end of their life must 

be collected separately and returned to an environmentally compatible recycling facility.

TROUBLE SHOOTING

Fault Symptom

Possible Cause

Troubleshooting

Out of service

Disconnection between plug and 

power socket

Put plug in power socket

shortcircuit in power supply

Repair and reconnection

At switch-off

Switch on

Loose switching contact

Replace switchboard by repairer

Burnout of stator or rotor coil

Replace stator or rotor by repairer

Wearout of carbon brush

Replace carbon brush by repairer

Stator wiring disconnection

Reconnection by repairer

Disconnection between carbon 

brush and commutator

Replace carbon brush

Sluggish start-up, falling 

short of running speed

Unsmooth running in mechanical 

part

Check mechanical part by repairer

Low supply voltage

Regulate supply voltage

Burnout of switch contact

Replace switchboard by repairer

Excessive sparkling during 

running

Underpressure in carbon brush 

spring

Replace carbon brush by reparier

Excessive wearout of carbon brush Replace carbon brush by reparier
Overvoltage in supply power

Regulate supply voltage

Disconnection between carbon 

brush and commutator

Replace carbon brush

Ring fire caused by shortcircuit in 

rotor winding shortcircuit

Check or replace rotor by repairer

Ring fire caused by shortcircuit in 

commutator segment

Check or replace rotor by repairer

Failed to reach rated power

Electrocircuit overload due to 

lighting device, public utility or 

other electric appliances

No use of public utility or other electric 

appliances on machine-connected 

electrocircuit

Machine superheating

Electromotor overload

Overload protection

Excessive blunt drilling bit

Replace drilling bit

Insufficient lubricating oil or greasy 

lubricating oil in reduction gearbox

Replenish or replace lubricating oil by 

repairer

Insufficient motor cooling

Dedust air outlet

Gear shifting failure

Shifting fork or bearing damaged

Check and replace shifting fork or bearing 

by repairer

Failure of mechanical shock 

motion

Air cylinder or teleflex damaged

Check and replace air cylinder or teleflex 

by repairer

Wearout of O-shape coil

Replace O-shape coil by repairer

Piston fracture or insufficient 

lubricating oil

Replace piston or replenish lubricating oil 

by repairer

Chock liner gets stuck

Repair chock liner by repairer

Disconnected running of spline 

shaft or swinging bearing by 

repairer

Replace spine shaft or swinging bearing 

by repairer

Piston connecting rod fracture

Replace piston connecting rod by repairer

No motion of drilling bit

during motor running

Rotor tooth fracture 

Replace rotor by repairer

Gear wheel fracture 

Replace gear wheel by repairer

Clutch gear slippage 

Replace clutch gear by repairer

Spare parts list and drawing Please download files on 

www.maxpro-tools.com