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SM3120-18D

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©Aero-Motive Company Jul-01

Ground Fault Cable Retractor

GR900 Series

Service Manual

AERO-MOTIVE COMPANY

A Woodhead Industries, Inc. Subsidiary

IMPORTANT SAFETY INSTRUCTIONS

Please read this manual carefully and follow its instructions.  Improper use or failure to follow these instructions could
result in serious injury, death or property damage.  Operators should be instructed in the safe and proper use and
maintenance of this product.  Keep this manual for future reference.

The following safety precautions call attention to potentially dangerous conditions.

DANGER:

Immediate hazards which WILL result in severe personal injury or death.

WARNING:

Hazards or unsafe practices which COULD result in 

severe

 personal injury or death.

CAUTION:

Hazards or unsafe practices which MAY result in 

minor

 personal injury or product or

property damage.

Model GR900 retracts up to 40 feet of #1/0 or #2/0 AWG grounding cable intended to protect equipment and personnel in
the event of a ground fault.  The collector rings’ electrical path through the reel has a current carrying capacity greater
then that of the largest cable (#2/0 AWG) to be installed on the reel.

WARNING:

Failure to lock the cable drum in position with the cable fully extended as instructed,  will
create an explosion hazard in the even of fault condition, and may result in property damage,
personal injury, or death.

WARNING:

The internal electrical path is not insulated from the reel frame, therefore, this reel is
unsuitable for other uses other than retracting ground cables.  Use for other applications will
create an electrical shock hazard, and could result in property damage, personal injury, or
death.

WARNING:

Failure to install, operate, and maintain the retractor in accordance with these instructions
may result in electrical shock causing property damage, personal injury, or death.

WARNING:

If ground fault has occurred, return the reel to Aero-Motive Company for inspection , and
possible repair before placing back in service.  Failure to do so could result in electrical
shock hazard, and may result in property damage, personal injury, or death.

Installation

CAUTION:

Misalignment of the reel and cable travel direction will cause the cable to be deflected at a
sharp angle around the cable guide rollers

CAUTION:

The reel should be bolted securely to a flat metal surface of sufficient strength and rigidity to
support it under all conditions to which it will be subjected.  Mounting holes will
accommodate 7/16” or 3/8” bolts.  Nothing smaller then 3/8” or 10mm bolts should be used.

Summary of Contents for GR900 Series

Page 1: ...G Failure to lock the cable drum in position with the cable fully extended as instructed will create an explosion hazard in the even of fault condition and may result in property damage personal injury or death WARNING The internal electrical path is not insulated from the reel frame therefore this reel is unsuitable for other uses other than retracting ground cables Use for other applications wil...

Page 2: ...ctor 5 Insert the cable end or pin connector through the diameter hole provided in the terminal on the rotating portion of the slip ring assembly 27 6 Lock the cable securely in place with the set screw and jam nut provided 7 Clamp the cable to the inside of the inner drum half 33 using the two hole clamp 23 screws 25 and washers 24 Provide slack between the cable termination on the slip ring asse...

Page 3: ... large or larger than the cable installed on the drum It is attached to the reel by connecting to the diameter copper rod protruding beyond the junction box cover 11 on the base 3 Connection should be made with a commercial fitting specifically intended for attaching this size cable to diameter copper rod WARNING Failure to make mechanically and electrically sound connection at both ends of the ca...

Page 4: ...ld result in and electric shock hazard causing damage personal injury or death MAINSPRING REPLACEMENT If the reel will not develop tension or retract cable the spring assembly may need to be replaced To replace the mainspring 1 Disconnect the input grounding connection 2 Remove junction box cover 11 and connector 12 3 Remove shaft retainer screw 1 and shaft retainer 2 4 Remove drum and main shaft ...

Page 5: ...SM3120 18D Page 5 of 6 Aero Motive Company Jul 01 REPLACEMENT PARTS ...

Page 6: ...LF Included in drum kit A below 30 M86550002 1 CABLE SEAL 31 M37810027 1 SEAL COVER 32 C03500201 4 SCREW PAN HD M4 X 12MM 33 1 INNER DRUM HALF Included in drum kit A below 34 STM2 1 CABLE STOP ST2 KIT 35 1 WARNING LABEL Included in drum kit A below 36 1 SLIP RING BRACKET Included in drum kit A below 37 2 SCREW PAN HD M8 X 16MM Included in drum kit A below KIT A H05040005 AR DRUM KIT GR900 Includes...

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