Tempo Communications 915CL User manual

INSTRUCTION MANUAL
52080500 REV 01 © 2019 Tempo Communications Inc. 12/19
915CL
Optical Fiber Cleaver
Preface
Description
The Tempo Communications 915CL Optical Fiber Cleaver is intended to
precisely cleave the fiber optic cable for subsequent use in the 915FS Fusion
Splicer.
Safety
Safety is essential in the use and maintenance of Tempo tools and equip-
ment. This instruction manual and any markings on the tool provide informa-
tion for avoiding hazards and unsafe practices related to the use of this tool.
Observe all of the safety information provided.
Purpose of This Manual
This instruction manual is intended to familiarize all personnel with the safe
operation and maintenance procedures for the Tempo Communications
915CL Optical Fiber Cleaver.
Keep this manual available to all personnel.
All specifications are nominal and may change as design improvements occur. Tempo
Communications shall not be liable for damages resulting from misapplication or misuse of
its products.
Important Safety Information
Read and understand all of the instructions and safety
information in this manual before operating or servicing
this tool.
Failure to observe this warning could result in severe
injury or death.
Electric shock hazard:
Contact with live circuits could result in severe injury or
death.
Wear eye protection when using this tool.
Fiber fragments can be extremely dangerous if they come
into contact with eyes or skin or are ingested.
• Collect all fiber scraps in the dust bin and dispose of them in an
approved fiber disposal unit.
• Do not touch the cleaving wheel blade cutting area.
• Do not disassemble or lubricate. Contact Tempo for maintenance and
repairs.
• Store in a dry, clean location in the protective pouch.
Failure to observe these precautions may result in injury and may
damage the unit.
KEEP THIS MANUAL
Register this product at www.TempoCom.com

915CL Cleaver
Tempo Communications Inc. 1390 Aspen Way • Vista, CA 92081 USA • 800-642-2155
2
Operation
1. Open the fiber clamp mechanism and pull the fiber cleaving wheel
mechanism back toward yourself.
2. Place the fiber to be cleaved in the desired fiber adapter.
Load
900 micron
fiber into the
adapter so that
the buffer is
flush with the
end of the
adapter.
Hint: It is easier to load the fiber into the adapter if the fiber is curled in a
downward direction from the fiber clamp.
3. Close the fiber clamp mechanism.
4. Push the cleaving wheel mechanism away from yourself to cleave the
fiber.
Note: Dust bin is removed for these photos.
Cleaving Start Position
Cleaving Finished Position
5. Open the fiber clamp mechanism.
6. Make sure that the cut fiber end is safely in the dust bin.
7. Remove the adapter with the cleaved fiber from the cleaver.
8. Place the adapter with the cleaved fiber into the 915FS for splicing.
Note: There is no need to remove the cleaved fiber from the fiber adapter
after the cleaving operation.
Normal Use and Maintenance
Make sure that the rubber presser feet and the fiber guide groove are clean
(no dust and fiber debris). Keep the fiber contact surfaces clean by using
isopropyl alcohol with a lint free cleaning wand.
Change the position of the cleaving wheel if the cleaving quality degrades
due to the blade being worn (usually 1000 cleaves per blade position). After
the cleaving wheel has been rotated through all 16 positions, the height can
be increased and the wheel can be reused through all of the 16 positions
once again. The cleaving wheel can be rotated two times for a total of 48,000
cleaves.
Blade Position Change
1. Loosen blade locking screw.
2. Rotate blade to next scale position.
3. Hold side face of blade and lock screw at new position.
4. Lay 0.7 mm pencil lead across both pressure pads.
0.7 mm
Pencil
Lead
5. Move slider back and forth and check if blade touches pencil lead.
• If blade touches pencil lead: Perform a cleave and check cleave angle
on 915FS.
If cleave is not good: Check if blade is damaged or dirty at
new position.
• If blade drags pencil lead all the way across: Go to “Blade Height
Adjustment”.
• If blade does not touch pencil lead: Rotate pencil lead ≈180°
and try again.
If not sure: Perform a cleave and check cleave angle on 915FS.
If cleave is not good: Go to “Blade Height Adjustment”.

915CL Cleaver
Tempo Communications Inc. 1390 Aspen Way • Vista, CA 92081 USA • 800-642-2155
3
Converting the 915CL to a Fixed Clamp Cleaver
Place the fixed clamp mechanism into the 915CL and secure with the screw
provided.
The 900 micron and 250 micron fiber adapters can be permanently left in the
915FS fusion splicer. If desired one M2X5 screws can be used to secure each
fiber adapter into the fiber adapter mounting area of the 915FS.
Fixed Clamp Mounting Screw
Blade Replacement
1. Lay down cleaver with scale numbers on blade facing up.
2. Remove blade locking screw.
3. Remove old blade and replace with new blade. Do not touch blade (very
sharp!) Use tweezers to remove old blade and insert new blade.
Normal Use and Maintenance (con’t)
4. Lock new blade at position “1”.
5. Lay 0.7 mm pencil lead across both pressure pads.
0.7 mm
Pencil
Lead
6. Move slider back and forth and check if blade touches pencil lead.
• If blade touches pencil lead: Perform a cleave and check cleave angle
on 915FS.
If cleave is not good: Check if blade is damaged or dirty at
position“1”.
• If blade drags pencil lead all the way across: Go to “Blade Height
Adjustment”.
• If blade does not touch pencil lead: Rotate pencil lead ≈180°
and try again.
If not sure: Perform a cleave and check cleave angle on 915FS.
If cleave is not good: Go to “Blade Height Adjustment”.

915CL Cleaver
Blade Height Adjustment
1. Loosen both compression screws and height locking screw.
1 – Height adjustment screw
2 – Height locking screw
3 – Compression screws for blade height adjustment arm
2. Turn height adjustment screw:
• CW if blade did not touch pencil lead (moves blade up).
• CCW if blade dragged pencil lead across (moves blade down).
3. Tighten height locking screw and both compression screws.
4. Lay 0.7 mm pencil lead across both pressure pads.
0.7 mm
Pencil
Lead
5. Move slider back and forth and check if blade touches pencil lead.
• If blade touches pencil lead: Perform a cleave and check cleave angle
on 915FS.
If cleave is not good: Check if blade is damaged at current position.
• If blade drags pencil lead all the way across: Go back to step 1 and
adjust CCW until good.
• If blade does not touch pencil lead: Rotate pencil lead ≈180°
and try again.
If not sure: Perform a cleave and check cleave angle on 915FS.
If cleave is not good: Go back to step 1 and adjust CW until good.
Normal Use and Maintenance (con’t) Specifications
Fiber Type Single and multimode fiber
Fiber Size 0.25/0.9/3 mm (fiber holder replaceable)
Coating Diameter 125 μm
Cleaved Length 5~25/10 mm
Cleaved Angle Typically 0.5°
Blade Life 48,000 cleaves
Mode Semi-automatic
Dimensions (H×W×D) 54 mm × 58 mm × 58 mm
Weight 310 g
Troubleshooting
Failure Mode Cause and Solution
Fiber does not cleave. 1. Acrylic coating not removed from fiber.
2. Fiber surface not clean.
3. Clean rubber presser feet.
4. Increase height of cleaving wheel.
End face has lip. 1. Increase height of cleaving wheel.
2. Clean rubber feet.
3. Check rubber feet for wear or abrasion.
End face has shadow
or incline angle.
Increase height of cleaving wheel.
Core missing. Lower height of cleaving wheel.
Lip Incline
Note: Contact Greenlee if the above chart does not provide a solution to
attaining a reliable cleave.
1390 Aspen Way • Vista, CA 92081
USA • 800-642-2155
Tempo Europe Ltd.
Brecon House, William Brown Close Cwmbran, NP44 3AB, UK
Tel: [phone]
www.TempoCom.com