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• Unplug the machine from the mains power supply after EVERY use, to avoid accidental
switch-on
• Always route the power cord towards the rear of the operator, AWAY from the machine
and work area. Ensure that the cable does not present a tripping hazard for the operator
and other people in the vicinity
• If you are using this machine with an extension lead, always unwind the cable completely.
WARNING: This tool may ONLY be connected to power supplies that are protected by a RCD
device. Test the function of any RCD regularly.
Product Familiarisation
1. Mixing Paddle
2. Attachment Point
3. Output Drive
4. Handles
5. On/Off Trigger Switch
6. Lock-On Button
7. Motor Vents
8. Brush Access Plugs
9. Gear Selector Switch
10. Variable Speed Dial
Included Accessories (not shown)
1x Spare carbon brushes
2 x spanners
Intended Use
Handheld electric 2-speed paddle mixer used for the preparation of plaster, cement, levelling
compounds, emulsions and similar building and decorating materials.
Unpacking Your Tool
• Carefully unpack and inspect your new sander. Familiarise yourself with all its features
and functions
• Ensure that all parts of the tool are present and in good condition. If any parts are missing
or damaged, have such parts replaced before attempting to use this tool
Before Use
WARNING: Ensure the tool is disconnected from the power supply before attaching or
changing any accessories, or making any adjustments.
Attaching a mixing paddle
WARNING: Always disconnect from the power supply before attaching/changing accessories.
WARNING: Never fit any attachment with a maximum speed lower than the no load speed
of the machine.
• This plaster mixer is equipped with an M14 female Output Drive (3)
• M14 threaded mixing paddles are fitted by screwing them into the output drive. Tighten
with a suitable spanner
• Ensure that the mixing paddle is securely tightened before use
Operation
WARNING: ALWAYS wear eye protection, adequate respiratory and hearing protection, as
well as suitable gloves, when working with this tool.
Switching On and Off
WARNING: Always ensure that the power cord is not interfering with the mixing paddle or
presenting a tripping hazard for the operator or other personnel in the vicinity.
• Grip the mixer firmly by the Handles (4), with both hands
• To start the mixer, squeeze the On/Off Trigger Switch (5)
• Press the Lock-On Button (6) to lock the tool in the ‘on’ position
• To stop the mixer, squeeze the On/Off Trigger Switch and release
Speed selection
• The mixer is fitted with a 2-speed gear box and variable speed control
• Slide the Gear Selector Switch (9) up or down, to select high or low gear
WARNING: The Gear Selector Switch must ONLY be operated when the mixing paddle has
stopped rotating. NEVER operate the Gear Selector Switch when the machine is running, as
this would cause damage to the gear box.
• To alter the speed, simply adjust the Variable Speed Dial (8). The higher the number, the
faster the speed
Mixing of material
WARNING: ALWAYS wear adequate personal protection equipment when mixing
compounds, including safety goggles or a face shield, breathing protection (specific to the
material used), gloves (suitable for the material used), hearing protection, and a hard hat
where required.
WARNING: This tool is designed for two-handed operation. Never use with one hand, or
attempt to mount stationary or prop-up against another object.
Note: ALWAYS refer to the compound manufacturers mixing requirements and
recommendations.
• The shape and size of a mixing paddle that is ideal for a specific application will depend
on the type of material being mixed:
- Substances with a low viscosity such as dispersion paint, varnish, thinset, sealing and
levelling compounds, cement, grout etc., will require a mixing paddle with a left-hand twist
- Substances with a high viscosity, such as ready-mixed plaster, concrete, screed, putty
and epoxy resin, will require a mixing paddle with a right hand twist
• It is important to keep the paddle moving throughout the bulk of the material whilst
mixing, as opposed to keeping it in one central position in the mixing container. Mix until
compound is completely blended
WARNING: DO NOT overload the motor whilst mixing. When you recognise a significant drop
in speed, switch off immediately to avoid damage to the tool. Consider changing to a different
mixing paddle or accessory more suitable for the material.
WARNING: When you have completed the mixing procedure, allow the mixer to come
to a complete stop before lifting it out of the material. Make sure not to contaminate the
environment and clean-up potential spillage.
WARNING: To avoid damage to the machine and cross-contamination between different
materials, always clean the mixing paddle immediately after use. Don’t let the material dry on
the accessory. Also, refer to the paragraph ‘Cleaning’ in the ‘Maintenance’ section below.
Accessories
• A range of accessories for your tool, including mixing paddles in numerous sizes and for
different compounds, is available from your GMC stockist. Spare parts can be obtained
from toolsparesonline.com
Maintenance
WARNING: ALWAYS disconnect from the power supply before carrying out any inspection,
maintenance or cleaning.
General inspection
• Regularly check that all the fixing screws are tight
• Inspect the supply cord of the tool, prior to each use, for damage or wear. Repairs should
be carried out by an authorised GMC service centre. This advice also applies to extension
cords used with this tool
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