Meisei Tools HOTWEEZERS - User Manual

948 TOURMALINE DRIVE, THOUSAND OAKS CALIFORNIA 91320
Phone: (805) 497-2626, Email: sales@meiseitools.com
OPERATING INSTRUCTIONS
To avoid physical injury and product damage, please read these operating instructions in their entirety before
using Meisei’s HOTWEEZERS
®
, HOTNIFE™ or Power Supply units. Proper use ensures optimum performance,
superior results and long product life.
IMPORTANT: HOTWEEZERS® and HOTNIFE™ units should only be used in areas with proper ventilation.
POWER SUPPLY (M-10, M-20)
Both the M-10 Power Supply (for Standard hand units) and the M-20 Power Supply (for ESD hand units) have a
three-wire line cord and plug. When plugged into a three-wire receptacle, the chassis is automatically grounded.
The Power Supply’s front panels have an ON-OFF switch, pilot light, variable temperature control and either ‘HI’
and ‘LO’ jacks (M-10) or a HI/LO switch (M-20). DO NOT use ‘HI’ and ‘LO’ jacks on the M-10 simultaneously.
The output of each jack is an isolated low voltage AC for operator safety.
TEMPERATURE SETTING
As the composition and thickness of different conductors, materials and cables varies, new users should
experiment with a sample of the material being stripped to find the ideal settings.
At the ideal setting the stripper will be just hot enough to pierce the insulation without melting or burning, and
the slug of stripped insulation should not stick to the stripper.
The following are suggested starting points to determine the optimal temperature per material:
‘LO’ Jack/Setting
‘HI’ Jack/Setting
PVC 2.5
Tefzel 1.0
Polyethylene 4.0
Silicone 7.0
Nylon 5.0
Teflon® 8.0
Kynar 9.0
If the insulation type is not known, start at ‘1’ on the ‘LO’ jack/setting and gradually increase the temperature
until the desired result is achieved.
Avoid temperature settings that generate fumes. Also, avoid using HOTWEEZERS® or HOTNIFE™ above ‘9’ on the
‘HI’ jack for prolonged periods as this will shorten the life of the stripper.
STRIP LENGTH GAUGE (HOTWEEZERS® only)
To avoid injury, always turn the Power Supply off and allow the HOTWEEZERS® to fully cool down before adjusting
the strip length gauge. Hold the depth gauge by the red tip and adjust to the proper strip length. Never grasp
the front stop plate as this may cause misalignment of the plate and damage to the HOTWEEZERS®. If the gauge
is not needed, fully retract it so that it does not interfere with operator performance
STRIPPING THE WIRE (HOTWEEZERS
®
only)
1) Hold the HOTWEEZERS
®
as you would a pencil (see diagram), with the tweezer blades pointing up. The rear
face of the blades should be facing toward you as you align the conductor to be stripped with the correct
gauge hole.

Summary

Operating Instructions

Important Safety Note: Ventilation

Crucial safety instruction requiring proper ventilation for specific tools.

Power Supply (M-10, M-20)

Details about the M-10 and M-20 power supply units, including controls and safety features.

Temperature Setting

Guidance on finding optimal temperature settings based on material type and thickness.

Strip Length Gauge (HOTWEEZERS only)

Instructions for adjusting the strip length gauge on HOTWEEZERS® tools.

Stripping the Wire (HOTWEEZERS only)

Step-by-step guide on how to use HOTWEEZERS® to strip wire insulation.

HOTWEEZERS; HOTNIFE Holder

Information on the safe storage and use of the hand unit holder.

Maintenance

Care and cleaning instructions for HOTWEEZERS® and HOTNIFE™ tools.

Overview

1. Function Description
2. Important Technical Specifications
3. Usage Features
4. Maintenance Features

The Meisei HOTWEEZERS® and HOTNIFE™ are specialized tools designed for stripping insulation from conductors, materials, and cables. They are used in conjunction with a Meisei Power Supply unit (M-10 or M-20).

Function Description:

The primary function of these tools is to precisely remove insulation without melting or burning the material, ensuring a clean strip and preventing the insulation slug from sticking to the stripper. The HOTWEEZERS® are designed for wire stripping, featuring tweezer blades with various gauge holes. The HOTNIFE™ is likely intended for more general insulation cutting or removal tasks. Both tools operate by heating their working surfaces to a controlled temperature, allowing them to pierce and separate insulation effectively.

Important Technical Specifications:

• Power Supply Units:
  • M-10 Power Supply: For Standard hand units, features 'HI' and 'LO' jacks.
  • M-20 Power Supply: For ESD hand units, features a HI/LO switch.
  • Both units have a three-wire line cord and plug for automatic grounding when plugged into a three-wire receptacle.
  • Output: Isolated low voltage AC for operator safety.
• Temperature Control: Variable temperature control allows users to adjust the heat output.
• Stripping Gauge Holes (HOTWEEZERS®):
  • Standard (4 Series HOTWEEZERS®) and ESD (7 Series HOTWEEZERS®) models offer various hole sizes for different wire gauges:
    • A: 36-28, 32-26, 30-24, 28-22, 26-20, 24-18
    • B: 28, 26, 24, 22, 20, 18
    • C: (No specific values provided for C, but implied to be part of the gauge range)
• Operating Environment: Units should only be used in areas with proper ventilation.

Usage Features:

• Temperature Setting Guidance: New users are advised to experiment with sample material to find ideal settings. The goal is to pierce insulation without melting or burning, and for the slug not to stick.
• Suggested Starting Temperature Points:
  • 'LO' Jack/Setting:
    • PVC: 2.5
    • Polyethylene: 4.0
    • Nylon: 5.0
    • Kynar: 9.0
  • 'HI' Jack/Setting:
    • Tefzel: 1.0
    • Silicone: 7.0
    • Teflon®: 8.0
  • If insulation type is unknown, start at '1' on the 'LO' jack/setting and gradually increase.
  • Avoid settings that generate fumes.
  • Avoid using HOTWEEZERS® or HOTNIFE™ above '9' on the 'HI' jack for prolonged periods to prevent shortening stripper life.
• Strip Length Gauge (HOTWEEZERS® only):
  • Adjustable depth gauge with a red tip for setting proper strip length.
  • Always turn off the Power Supply and allow HOTWEEZERS® to cool before adjusting.
  • Never grasp the front stop plate to avoid misalignment and damage.
  • Retract fully if not needed to avoid interference.
• Stripping Procedure (HOTWEEZERS® only):
  • Hold like a pencil with blades pointing up, rear face towards the user.
  • Align conductor with the correct gauge hole.
  • Close jaws around the wire and rotate the HOTWEEZERS® about 15° to ensure complete insulation separation and eliminate "tails."
  • Remove the wire and pull off the insulation slug by hand; do not use the stripper head to remove the slug to avoid damaging the conductor.
• HOTWEEZERS®/HOTNIFE™ Holder:
  • Located on top of both M-10 and M-20 Power Supplies.
  • Provides a safe, secure location for the hand unit when not in use.
  • Securely locks units into place when properly inserted, preventing accidental knocks and injury.
  • Includes a built-in idle switch: when the hand unit is placed in the holder, the power level automatically switches the temperature control to the '1' position (LO). When removed, it reverts to the original setting.
  • Never put the hand unit down or set it aside elsewhere.

Maintenance Features:

• Durability: Designed for long service with reasonable care.
• Cleaning:
  • Occasional cleaning of the stripping head or blade is the only required maintenance.
  • Use a soft metal bristle brush (brass bristles recommended) to remove large pieces of insulation and residue.
  • NEVER clean HOTWEEZERS® and HOTNIFE™ with a file.
• Mishandling Prevention: Mishandling can cause damage or, in the case of HOTWEEZERS®, misalign the stripping head.

Meisei Tools HOTWEEZERS Specifications

General

Brand	Meisei Tools
Model	HOTWEEZERS
Category	Tools
Language	English