Home
Replacements
Patient Table
Replacing the dockable table ElectroMagnetic (EM) clutch and belt
Removes the ElectroMagnetic (EM) clutch and belt from the dockable table motor and EM clutch assembly, and installs a replacement clutch and belt.
Adjusting the patient table belt tension
Measures and adjusts belt tension for a dockable patient table.

Replacements
- Operator Workspace
- ISC (Integrated System Cabinet)
- ICC (Integrated Cooling Cabinet)
- Magnet Enclosure and Outer Electronics
- Coil Replacement
- Patient Table
  - Removing and installing the dockable table covers
    Provides removal and installation instructions for all dockable patient table covers.
  - Replacing a dockable table armboard
    Removes the left- or right-hand armboard from the dockable table and installs a replacement armboard.
  - Replacing the patient table braking system components
    Replaces braking system components for the dockable patient table.
  - Replacing a dockable table cable assembly
    Removes the P1/PE or P2/P4 cable assembly from the dockable patient table and installs a replacement cable assembly.
  - Replacing a table caster
    Removes one of the caster assemblies from the table base and installs a replacement caster.
  - Replacing the cradle flipper assembly
    Replaces the cradle flipper assembly in a dockable patient table.
  - Replacing the dockable table cradle
    Replaces the bottom half of the dockable table cradle.
  - Replacing a dockable table cradle side wheel
    Removes a side wheel from the dockable table patient cradle and installs a replacement wheel.
  - Replacing a dockable table cradle vertical wheel
    Removes a vertically-oriented wheel from the dockable table patient cradle and installs a replacement wheel.
  - Replacing the table dock cables
    Replaces the dock cables for the dockable patient table.
  - Replacing table dock components
    Procedures for replacing field replaceable units contained within the table dock.
  - Replacing the dockable table dummy load
    Removes the dummy load from the dockable table and installs a replacement dummy load.
  - Replacing the egress switch and springs
    Removal and installation instructions for replacing the egress switch and springs.
  - Replacing table electrical docking mechanism components
    Removes table components related to electrical docking and installs replacement components.
  - Replacing the dockable table ElectroMagnetic (EM) clutch and belt
    Removes the ElectroMagnetic (EM) clutch and belt from the dockable table motor and EM clutch assembly, and installs a replacement clutch and belt.
    - Lowering the dockable table bellows
      Detaches the dockable table bellows cover from the table side covers and lowers the bellows.
    - Removing the right-hand table side cover
      Removes the right-hand cover from the dockable table.
    - Removing the left-hand table side cover
      Removes the left-hand cover from the dockable table.
    - Removing the dockable table motor and clutch assembly
      Removes the motor and ElectroMagnetic (EM) clutch assembly from the dockable table tabletop.
    - Removing the dockable table motor coupler
      Removes the coupler from the rigibelt drive shaft.
    - Removing the ElectroMagnetic (EM) clutch
      Removes the ElectroMagnetic (EM) clutch from the dockable table motor and EM clutch assembly.
    - Preparing the replacement ElectroMagnetic (EM) clutch
      Prepares a new ElectroMagnetic (EM) clutch for installation by moving the shaft from the removed clutch to the new clutch.
    - Installing the ElectroMagnetic (EM) clutch
      Installs the ElectroMagnetic (EM) clutch into the dockable table motor and EM clutch assembly.
    - Installing the dockable table motor coupler
      Installs the coupler onto the rigibelt drive shaft.
    - Adjusting the patient table belt tension
      Measures and adjusts belt tension for a dockable patient table.
    - Installing the dockable table motor and clutch assembly
      Installs the motor and ElectroMagnetic (EM) clutch assembly onto the dockable table tabletop.
    - Installing the left-hand table side cover
      Installs the left-hand cover onto the dockable table.
    - Installing the right-hand table side cover
      Installs the right-hand cover onto the dockable table.
    - Raising the lowered dockable table bellows
      Raises a previously lowered dockable table bellows cover and attaches the bellows to the table side covers.
    - Doing the cradle motion test
      Makes sure the motion of the patient cradle into and out of the magnet bore is operating correctly.
    - Doing a check scan
      A check scan is done at the conclusion of many procedures. This functional check assures the unit is in good clinical working order.
  - Replacing the handle hinge
    Removes the handle hinge from the dockable table and installs a replacement hinge.
  - Replacing the hydraulic cylinder
    Removes the hydraulic cylinder from a dockable patient table and installs a replacement hydraulic cylinder.
  - Replacing the hydraulic filter
    Removal and installation instructions for replacing the hydraulic filter in the dockable patient table.
  - Replacing the hydraulic rotary pump
    Replaces the hydraulic rotary pump of the dockable patient table.
  - Checking and filling hydraulic fluid
    Checks and adjusts the hydraulic fluid level for the dockable patient table.
  - Replacing the dockable table motor
    Removes the longitudinal movement motor from the dockable table and installs a replacement motor.
  - Replacing the dockable table motor coupler
    Removes the rigibelt drive to motor coupler from the dockable table and installs a replacement coupler.
  - Replacing the dockable table Physiological Acquisition Controller (PAC)
    Replaces the Physiological Acquisition Controller (PAC) on the dockable table.
  - Replacing the dockable table Posterior Array (PA) coil
    Removes the Posterior Array (PA) coil from the dockable table cradle and installs a replacement coil.
  - Replacing the primary latch assembly
    Removes the primary latch assembly from the dockable table and installs a replacement primary latch assembly.
  - Replacing the reciprocating pump assembly
    Removes the reciprocating pump assembly from the dockable patient table and installs a replacement reciprocating pump assembly.
  - Replacing the respiratory connector or patient alert connector
    Provides instructions for replacing the respiratory connector or patient alert connector.
  - Replacing the dockable table rigibelt drive (actuator)
    Removes the rigibelt drive from the dockable table and installs a replacement drive.
  - Replacing the secondary latch actuating cable
  - Replacing the strain relief
    Removes the strain relief from the patient table handle-end cover and installs a replacement strain relief.
  - Replacing the dockable table string encoder
    Removes the string encoder from the dockable table and installs a replacement encoder assembly.
  - Replacing a dockable table touch-and-go assembly or side bumper
    Provides instructions for replacing a touch-and-go assembly or a side bumper on the dockable table.
  - Replacing table undock mechanism components
    Removes the undock link and lever from the table base and installs replacement components.
- MDP
- Pen Panel

SIGNA™ Hero 3.0T Service Methods
5852800-8EN Revision 1.0
Object ID: 00000018WIA30E12E40GYZ
Topic ID: id_2019736 Version: 1.13
Date: Apr 23, 2020 8:52:08 PM

Adjusting the patient table belt tension

Prerequisites


Personnel requirements
Required persons	Preliminary requirements	Procedure	Finalization
1	-	15 minutes	-


Tools and test equipment
Item	Quantity	Part number	Manufacturer
Stainless Steel Ruler	1	46-198452P2	-
Tension Meter Tool	1	5834577	-
Nonmagnetic Titanium Service Tool Kit, Small Set	1	5113258	-

Procedure

Put the small o-ring on the tension meter at zero.

Figure 1. Small o-ring at zero
Put a ruler on the motor and ElectroMagnetic (EM) clutch assembly base close to the center of the belt span.

Figure 2. Belt tension setup

1 Belt
2 Tension meter tool
3 Ruler
Put the tension meter on the belt squarely at the center of the belt span with the ruler visible.
Align your point of view such that you are looking at the belt directly on its edge with the scale of the ruler behind the belt.
Without changing your point of view, press the tension tool plunger straight down onto the belt until the belt has deflected 3 mm as measured on the ruler.

Figure 3. Belt tension measurement
1 Deflected measurement
2 Undeflected measurment
3 Tension meter tool plunger
4 Tension meter tool
5 Ruler
6 Deflected belt
Release the tension tool and read the force applied from the bottom of the small o-ring on the deflection force scale. Compare the force measurement to the table below.

Figure 4. Belt tension reading o-ring

Table 1. Belt tension
Belt type Force
New 1.0-1.1 kilograms
Used 0.8-1.0 kilograms
If the belt tension is outside of minimum or maximum values, tighten or loosen the belt tension screw as follows:
1. Slightly loosen the four screws securing the motor to the motor housing.
  
  Figure 5. Belt tension adjustment screws
  1 Motor securing screws
  2 Belt tension adjustment screw
2. Turn the tension adjustment screw to adjust the belt tension. Turn clockwise to tighten the belt or counter-clockwise to loosen the belt.
3. Tighten the four screws securing the motor to the motor housing.
Repeat Step 1 through Step 7 until the deflection force is within tolerance.

Home
Replacements
Patient Table
Replacing the dockable table ElectroMagnetic (EM) clutch and belt
Removes the ElectroMagnetic (EM) clutch and belt from the dockable table motor and EM clutch assembly, and installs a replacement clutch and belt.
Adjusting the patient table belt tension
Measures and adjusts belt tension for a dockable patient table.