• SIGNA™ Hero 3.0T Service Methods
  • 5852800-8EN Revision 1.0
  • Object ID: 00000018WIA3077F450GYZ
  • Topic ID: id_2023987 Version: 1.50
  • Date: Oct 19, 2021 3:26:34 PM

Installing gradient cables to the GFA2 equipment room (2nd generation gradient filter)

Attach precrimped lugs and connect the gradient cables to the equipment room side of the Gen2 Gradient Filter Assembly, 5808046-2.

About this task

Attach and secure the X,Y, and Z axis (pink lugs) to the corresponding posts, single post positive and double post negative. Torque each SHCS (socket head cap screw) to 45 Nm, using the 3/8 in. hex adapter.

Figure 1. Gen2 gradient filter, equipment room side
1Outer insulation
2Upper clamp
3Lower clamp
4Negative wires
5Positive wires

Procedure

  1. Position the gradient cables on the corresponding clamps on the gradient filter. The black insulation should be under the top clamp, braid under the bottom clamp. Loosely secure the cables with the clamps.
    Note: The lower clamps are reversible. The smaller side of the clamps (1 AWG) should face inward, toward the cables.
    Figure 2. GEN2 gradient filter, equipment room side
    1Run E3317 = FILT X, left side
    2Run E3318 = FILT Y, middle
    3Run = FILT Z, right side
    4Ground cable attachment locations
  2. Connect each ground cable to the gradient filter. Do not over tighten GND studs.
  3. Attach and secure the lugs to the corresponding posts with a screw. Torque each bolt to 45 N m.
    Note: Red wires are positive (+). Black wires are negative (-).
  4. Tighten the upper and lower clamps until each gradient cable is secured. Do not pinch or compress the gradient cable.
    Note: The lower clamps are reversible. The smaller side of the clamps (1 AWG) should face inward, toward the cables.
  5. Install the equipment room side gradient filter cover.