3
Table of Contents
›
Because the IHN800 generates a magnetic field, people
wearing a pacemaker must not be within 5 m (16 ft) of
the IHN800 during operation� Electronic equipment, such
as wrist watches, may also be affected�
›
Follow the operating instructions at all times�
›
Be certain that the voltage supply is correct�
›
Electrical arcing may occur when a potential difference
exists between the IHN800 and the workpiece� This is
not dangerous to human beings and will not cause
damage to the IHN800 or the workpiece� However, the
IHN800 must never be used in areas where there is a
risk of explosion�
›
Do not expose the heater to high humidity�
›
Never operate the IHN800 without a yoke in position�
›
Do not modify the IHN800�
›
Use proper handling equipment when lifting heavy
workpieces�
›
Avoid contact with hot workpieces� Wear the supplied
heat resistant gloves to handle hot workpieces�
Safety Recommendations
1 Introduction
The IHN800 induction heater is designed to heat bearings that are mounted with an interference fit onto a shaft� The heat
causes the bearing to expand, which eliminates the need to use force during installation� A 90°C (194°F) temperature
difference between the bearing and shaft is generally sufficient to enable installation� At an ambient temperature of 20°C
(68°F), the bearing must therefore be heated to 110°C (230°F)�
1.1 Intended Use
The IHN800 has been designed to heat rolling bearings� However, other metal workpieces that form a closed circuit can also
be heated� Examples of acceptable workpieces include bushings, shrink rings, pulleys, and gears� All bearings that fit over the
inductive coil and between the vertical supports with the sliding yoke in place can be heated using the IHN800� In addition,
smaller bearings can be placed over the sliding yoke� See the illustration at the beginning of this manual for example�
