Home Appliances / Washing Machines
User Manual for Hitachi UM 16VST and UM 12VST Mixer
Quick guide for the Hitachi UM 16VST and UM 12VST mixer. Includes setup, operation, speed adjustment, maintenance, and safety instructions.
Table of contents
Manual images
Click an image to enlargeQuick guide from the manual
This manual provides instructions for the Hitachi UM 16VST and UM 12VST mixers. Always ensure the power switch is in the OFF position before connecting to a power source to prevent accidental starting. Hold the machine firmly with both hands during operation for safety and control.
Assembly
To mount the stirrer paddle (Fig. 2):
- Ensure the switch is in the OFF position and the tool is disconnected from power.
- Screw the stirrer paddle onto the spindle.
- Hold the spindle in place with a wrench and tighten the paddle with another wrench in a clockwise direction.
Operation
Switching: Depress the trigger to start the tool. Release it to stop. For continuous operation, pull the trigger and push the stopper. To switch off, pull the trigger again to release the stopper.
Speed Adjustment: Use the gear shift dial (Fig. 3) to change between low speed (1) and high speed (2). If the dial is hard to turn, rotate the spindle slightly. Use the speed control dial (Fig. 5) to pre-select the desired rotation speed.
Maintenance
Regularly inspect mounting screws and tighten if loose. Keep the motor clean and free of water or oil. Inspect carbon brushes periodically; if worn, replace them with genuine Hitachi carbon brushes of the same number. Repairs should only be performed by an authorized Hitachi Service Center.
Manufacturer information
Hitachi, Ltd.
Practical help
Common problems
Gear shift dial is hard to turn
Turn the spindle slightly in either direction and then try turning the gear shift dial again.
Motor trouble
Check carbon brushes for excessive wear and replace if necessary with genuine Hitachi parts.
Tool starts immediately upon plugging in
Ensure the power switch is in the OFF position before connecting to the power source.
Before use
- Ensure the power source matches the requirements on the product nameplate.
- Check that the power switch is in the OFF position.
- Ensure the stirrer paddle is securely tightened onto the spindle.
- Wear appropriate personal protective equipment (eye protection, dust mask).
- If working outdoors, use a residual current device (RCD).
Specs in practice
- 1500 W / 1100 W
- Power input for UM16VST and UM12VST respectively.
- 150 – 300 min-1
- Low speed range (Gear 1).
- 300 – 650 min-1
- High speed range (Gear 2).
Images and diagrams
- Fig 1: Overview of the mixer components.
- Fig 2: Mounting and dismounting the stirrer paddle.
- Fig 3: Gear shift dial for speed change.
- Fig 4: Trigger switch and stopper.
- Fig 5: Speed control dial.
Model compatibility
- UM16VST uses a 160 mm stirrer paddle.
- UM12VST uses a 120 mm stirrer paddle.
Manual page author
David Miller
Documentation analyst
Organizes user manual content into clear summaries, with attention to model details, product context, and everyday usability.