Instruction Manual
Breaks and rejoins all types of chain quickly and easily. Suitable for most size of
drive or cam chain from #35 to # 630 including O-ring. Supplied with a range of pins
and dies.
INTRODUCTION & SPECIFICATION
OPERATING INSTRUCTIONS
Note: This tool may be used for breaking all chain size from number 35 to 630 but it is
not recommended forbreaking heavy-duty types of 530 to 630 unless the rivet head is
ground off first.
Note: Id working on cam chain be sure and cover chain tunnel with rag to prevent parts
dropping down.
1 BREAKING CHAIN(PRESSING OUT LINK PIN).
1.1 Assemble tool as shown in fig.1(Anvil not used).
1.2 Select correct size breaking tip (fig.2.3) for the chain to be worked on and insert
into alignment bolt (fig.2.1) by removing push (extractor) bolt (fig.2.4), insert breaking
tip (fig.2.3), with spring(fig.2.2) under head of breaker pin, and replace push
(extractor) bolt (fig.2.4). If small 2.2 mm tip is used you must also use the upper and
lower guides (see fig.3) to prevent breaking the tip.
The upper guide threads onto the alignment bolt, the lower guide drops in place in
bottom of tool body. Smallest pin (2.2 mm) should be used on most cam chains,
2.9mm pin on #25 or #35 chain and 3.8 mm pin for most motorcycle drive chains
(428 to 530).
1.4 Tighten push (extractor) bolt with a 14 mm wrench or lever bar until the chain pin
is pushed completely out, the chain pin will drop out of the hole in the bottom of the
tool. Withdraw push bolt and breaking tip, loosen alignment bolt and remove.
NOTE: When tightening push (extractor) bolt against chain link pin; if you don't feel
the tip pushing down smoothly, check that the tip is correctly lined up against the link
pin. If not redo step 2.3 or you may break the breaking tip.
2 INSTALLING CHAIN LINK PIN (Riveting).
2.1 The rivet tip and anvil must be in place in tool.
2.2 Assemble the chain with the link to be rivetted. Special rivet link pins must be
used, using original pushed out pin is not recommended as the ends will be weakened.
Do not use a split pin type connecting link. The pin must be pushed all the way through
the chain link, if the pin is hard to insert it can be pushed into place by placing chain
into the tool with the rivet tip withdrawn 2mm into the alignment bolt and tightening the
alignment bolt until the pin has been pushed through the link, ensure that an equal
length of pin shows on each side of the link.
2.3 Position the tool over the pin to be rivetted, make sure rivet tip is withdrawn 2mm
into the alignment bolt and tighten the alignment bolt securely against chain. Tighten
the push (extractor) bolt so that the rivet tip flares the chain pin. Both ends of the
chain link pin should be flared so the pin is securely held in place. Repeat procedure
on other link pin.
2.4 Withdraw the tool, remove the chain; visually check that both chain link pins
show the same flared ends.
NOTE: You may also use the press plates to flare the ends of pins as shown below
(fig.4); use the press plate with the two holes in the upper jaw and the grooved press
plate in the lower jaw. You may also use a combination of the rivet pin and lower
press plate as fig.5.
1.3 Put tool over chain, breaker pin tip must be withdrawn at least 2 mm into
alignment bolt. The end of the chain rivet should be held in position by the tool
alignment bolt, the other end of the rivet should be held in the tool body. Tighten the
alignment bolt securely against chain to hold chain in place.
Note: The warnings, precautions and instructions discussed in this instruction
manual cannot cover all possible conditions and situations that may occur. It must
be understood by the operator that common sense and caution are factors which
cannot be built into this product, but must be supplied by the operator.
