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Thank you for placing your trust in our company by
purchasing the Weller WMRT Micro Tweezer. The
ergonomic anti-static design, selection of desoldering
tweezer tips, and 80 watts of power, provide Weller
superior performance, versatility, and quality.
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Please read these Operating Instructions and the
attached Safety Information carefully prior to initial
operation. Failure to observe the safety warnings may
result in accident, injury, or risk to health.
The manufacturer shall not be liable for damage result-
ing from misuse or unauthorized alterations of the
equipment.
Warning: This product, when used for soldering and
similar applications, produces chemicals known to the
State of California to cause cancer and birth defects or
other reproductive harm.
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● Always place the WMRT tweezer in the original
holder.
● Remove all inflammable objects from the
proximity of the hot desoldering tool.
● Use suitable protective clothing. There is a risk of
burns associated with molten solder.
● Never leave the hot WMRT tweezer unattended.
● Never work on electrically live circuits or
components.
● Always wear eye protection when working with
soldering and desoldering applications.
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The Weller WMRT Tweezers are designed for rework and
repair of precision SMT electronic devices. The desol-
dering tip set can be quickly and easily changed with-
out the use of tools. The tips are pre-aligned and addi-
tional alignment is not required. The integrated (2 X 40
W) heating elements ensure that the desoldering tip
temperature is reached very quickly and controlled pre-
cisely. The desoldering tweezers are switched off auto-
matically when placed in the WMRTH tool holder.
The Weller WMRT Tweezers may only be used with the
WD1M or WD2M series power units.
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Place the desoldering tweezers ( 4 ) in the tool holder
and ensure that the hand piece is correctly seated in
the stand ( 1 ). Move all combustible objects away
from the tweezers and the work area. Insert the con-
nector ( 5 ) into the power supply receptacle and lock it
by turning clockwise. Turn the station’s power switch
“On” and set the desired temperature. When the tips
have reached the set temperature, tin both tweezer tips
with solder.
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Desoldering tips must only be changed when cool. The
tip change does not require tools. The desoldering tip
cartridge is inserted into the front of the hand piece ( 4
). The 5-pin mini-plug on the back of the tip cartridge is
polarized for correct alignment with the hand piece. The
top of the tip cartridge is printed with L (Left) and R
(Right) indicators for proper orientation. The indicators
align with L and R indicators printed on the hand piece.
The tip cartridge ( 3 ) can be removed from the hand
piece by grasping the molded grips and pulling outward
to release.
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Always ensure that the desoldering tip is properly seat-
ed.
When installing a new desoldering tip cartridge, ensure
that the cartridge is inserted completely against the
stop in a single motion. Operation with a desoldering tip
that is not completely inserted can cause the tip car-
tridge to malfunction.
During initial heat up, tin the tips with solder. This
removes oxidation and contamination on the desolder-
ing tips. Before placing the tool in the holder, always
ensure that the desoldering tips are well tinned. Use of
an aggressive flux will possibly shorten tip life.
Always keep the cleaning sponge ( 2 ) damp. Use only
distilled or de-ionized water.
In addition to the informaton included in this manual,
please see the safety manual and the instructions for
the applicable power unit.
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