Motion Pro 08-0058 User manual

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Chain Breaker and Riveting Tool P/N 08-0058
Thank you for purchasing the Motion Pro Chain Breaker and Riveting Tool. This tool is designed for light to
medium-duty use. It will break chains up to size #630, press master link plates on chains up to #530, and rivet
hollow nosed master link pins on chains up to #630. For heavy-duty applications or for solid-nosed riveting
please refer to Motion Pro part number 08-0135 Jumbo Chain Tool and part number 08-0142 Quad Stake
Riveting Tool.
IMAGE A
A– Body, C08-058A F– Spring, C08-001D K– Lower Guide for 2.2mm tip
B– Alignment Bolt, C08-058B G– 2.2mm Breaking Tip, 08-0059 L– Press Plates (set), 08-0067
C– Push Bolt, C08-058C H– 2.9mm Breaking Tip, 08-0060 M– Large Anvil, C08-058D
D– Lever I– 3.8mm Breaking Tip, 08-0061 N– Small Anvil
E– Handle J– Upper Guide for 2.2mm tip O– Rivet Tip, 08-0062
-Read all instructions for each procedure before beginning. Improper use of the tool can cause
breakage.
-Make sure the tool is clean and apply grease to all threads before assembling and using. This will help the
tool operate more smoothly and allow you to feel tension when using the tool.
-When breaking #520 or larger drive chain, it is recommended to grind off the rivet heads first. This will
significantly reduce the load on the tool and help prevent premature wear or damage to the breaking tips.
-All tightening procedures are to be performed by hand only, using the lever or a 14mm wrench. Do not use
extensions or power tools of any kind or the tool may be damaged.
A
C
D
E
F
GH
I
J
O
K
M
N
L
B

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BREAKING CHAINS
Use only the correct breaking tip for your application, or you will damage the tip.
2.2mm breaking tip for most cam chains.
2.9mm breaking tip for chains #25 - #35 only.
3.8mm breaking tip for drive chains #428 - #630.
Assemble the tool as shown in Image B and the diagram below for breaking chains. Thread the alignment bolt
into the body. Insert the breaking tip into the spring and drop them into the alignment bolt with the spring under
the tip head. Thread the push bolt into the alignment bolt above the tip. (When breaking cam chains with the
2.2mm breaking tip, the ‘Upper Guide for 2.2mm Tip’ will be threaded onto the alignment bolt and the ‘Lower
Guide for 2.2mm Tip’ will be placed in the hole in the tool body to support the 2.2mm breaking tip. Cover the
cam chain tunnel with a rag to prevent parts from falling into the motor.) Image B shows a drive chain in place.
1-Place the tool over the chain as shown in Image B. The breaking tip must be withdrawn at least 2mm into
the alignment bolt to clear the end of the chain pin. Do not withdraw the breaking tip too far into the alignment
bolt or it can get hung up inside the alignment bolt. One end of the chain pin will be held in position by the end
of the alignment bolt, while the other end is held in position by the hole of the tool body.
2-Tighten the alignment bolt securely against the side plate of the chain, but do not over-tighten or the
alignment bolt and tip could drift out of position. The alignment bolt is for aligning and supporting the breaking
tip, so do not attempt to break the chain with the alignment bolt retracted or you will damage the breaking tip.
3-Read this step all the way through before beginning. Tighten the push bolt by hand only with the lever
or a 14mm wrench until the chain pin is pushed completely out and through the hole in the tool body. You will
feel some initial tension as the chain pin begins to shear, but afterwards the breaking tip should push smoothly
into the chain link. IMPORTANT: If the chain pin doesn’t start to break free, or you don’t feel the breaking tip
going into the chain link smoothly, back out the alignment bolt just enough to check that the breaking tip is
correctly lined up with the chain pin. Once the breaking tip and chain pin are aligned properly, tighten the
alignment bolt back down and start over at the beginning of this step. Do not apply excessive force or use air
tools or you may damage the tool.
Lever
Push Bolt
Alignment Bolt
Spring
Breaking
Tip
Alignment
Bolt
Handle
Chain
Link
Upper Guide shown
for reference only
Lower Guide shown
for reference only
Drive chain
shown here
Body
Hole in
tool Body
Push Bolt
Alignment Bolt
IMAGE B

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PRESSING SIDE PLATES
Assemble the tool as shown in Image C for pressing side plates. The alignment bolt will be threaded into the
body, with the breaking tip, spring and push bolt removed. The press plate with the holes will be inserted
into the alignment bolt, and the press plate with the groove will be placed in the hole in the tool body.
IMAGE C IMAGE D
1-Assemble the new chain with the master link, side plate and o-rings (if applicable) as specified by the chain
manufacturer. Position the assembled master link in the tool as shown in Image D. The side plate with the
pins will be placed against the grooved press plate, and the side plate with the holes will be placed against the
press plate with the holes.
2-Lightly hand-tighten the alignment bolt until the press plates touch the master link side plates. Check that the
master link chain pins are properly aligned with the groove and holes in the press plates before final tightening.
3-Using a 14mm wrench, tighten the alignment bolt until the chain pins protrude past the face of the side plate.
For clip type master links, the pins should protrude enough to install the clip into the grooves in the chain pin.
For rivet type master links, the chain pins should protrude enough to be properly flared over the side plate. A
simple technique is to measure the width of the side plates on an adjacent link with a caliper, and then press
the master link side plate on until you achieve the same width dimension.
* Refer to the chain manufacturer’s specifications for distance of chain pin protrusion, and direction
and installation of master link clips. All chains are different, and Motion Pro cannot provide the exact
specifications for your chain.
Press Plate
with holes
Press Plate
with groove
Alignment
Bolt
14mm wrench
New master
link between
Press Plates

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RIVETING CHAIN PINS
Assemble the tool as shown in Image E for riveting hollow-nosed master link pins. Thread the alignment bolt
into the body. Insert the rivet tip into the spring and drop them into the alignment bolt with the spring under the
tip head. (Refer to internal diagram with Image B). Thread the push bolt into the alignment bolt above the tip.
Place the anvil in the hole in the tool body per Image G. (Small anvil used for up to 3-series cam chains only).
IMAGE E IMAGE F IMAGE G
1-The new master link side plates should already be pressed (see Pressing Side Plates) so that the chain pin
protrudes past the face of the master link’s side plate. Refer to the chain manufacturer’s specifications for the
proper protrusion distance. Do not attempt to re-use broken master links, or use a clip on a rivet type master
link. Position the tool over the chain pin to be riveted, with the hollow end of the chain pin facing the rivet tip,
and the solid end facing the anvil.
2-Make sure the rivet tip is withdrawn enough to clear the end of the chain pin. Tighten the alignment bolt
securely against the side plate of the chain, but do not over-tighten.
3-Using the lever or a 14mm wrench, tighten the push bolt very tightly until the rivet tip spreads the hollow nose
of the chain pin. The end of the chain pin should be flared over the side plate just enough so that the side plate
is solidly held in place. Repeat this procedure on the other chain pin. The amount of flare of a rivet –type
master link varies among chain manufacturers. Some specify as little as 0.006” and generally no more than
0.028”. This is a very small amount of flare. Do not attempt to flare the chain pin flush with the side plate, or the
chain pin can crack and be weakened, and you risk damaging the tool as well. Measure the un-flared chain pin
with a caliper, and then check the flare often with the caliper to insure you do not over-flare the chain pin. One
turn of the push bolt equals one millimeter of travel, so a typical flare will require less than a full turn.
Image F shows a properly flared hollow-nosed master link.
4-Withdraw the tool from the chain, and visually check that both chain pins show the same size flares. Check
that the riveted-on side plate is in alignment with the side plates of adjacent chain links.
* It is very important that chain master links be clipped or riveted properly. Improper installation can
lead to great bodily harm or death. If you are unfamiliar or uncomfortable with this process, please
have your work supervised by a qualified technician or bring your vehicle to a qualified facility for
repair.
Push Bolt
Alignment
Bolt
Rivet Tip inside Spring
inside Alignment Bolt
Large Anvil
Hole in
tool Body
Properly flared
chain pins