Adjustments/Calibrations
- System
- Gradient
- Radio Frequency (RF)
- Magnet Enclosure
- Patient Table
  - Patient handling adjustments
    - Cradle Release Pin Height Adjustment
      Adjust the cradle release pin to the correct height.
    - Cradle/LPCA release adjustment
      Adjust the actuator on the LPCA so that it presses a button on the cradle to mechanically release the cradle from the patient table.
    - Cradle/table release block adjustment/cradle egress functionality
      Adjust the cradle release block position and the cradle release block retraction.
    - Leveling the patient table
      Adjust the patient table for floor levelness and do a check of the caster height. If adjustment is required, level the patient table.
    - Table top height adjustment
    - Table Dock
  - Checking the longitudinal drive belt tension
  - Cradle guide rail latch adjustment
    This procedure describes how to adjust the cradle guide rail latch so that the cradle does not move when the table is undocked.
  - Cradle Home Table down interlock adjustment
    This procedure describes how to adjust the mechanical interlock, which prevents the Patient Table from being undocked or lowered while the Cradle is in the magnet bore.
  - Cradle release from carriage adjustment
    Adjust the LPCA mechanism that allows the cradle to be released from the LPCA by twisting the handle located on the rear of the cradle.
  - Dual Table Alignment
    Align two tables dedicated to one MR suite.
  - Checking and filling hydraulic fluid
    Checks and adjusts the hydraulic fluid level for the dockable patient table.
  - Bleeding the patient table hydraulics
    Bleeds the hydraulic lines for the dockable patient table.
  - Patient table movement verification
    Makes sure the patient table controls operate correctly.
- Global Operator Console (GOC)
- Spectroscopy

Discovery MR750 3.0T System Service Methods
5690009-2EN Revision 4
Object ID: 00000018WIA30AD1130GYZ
Topic ID: id_15271086 Version: 4.3
Date: Jan 26, 2022 5:48:59 PM

Table top height adjustment

Prerequisites


Personnel requirements
Required persons	Preliminary requirements	Procedure	Finalization
1	-	10 minutes	-


Tools and test equipment
Item	Quantity	Part number	Manufacturer
Non-ferrous standard head screwdriver	1	-	-

About this task

Overview

This procedure provides instructions on how to adjust the height of the table top.

Procedure

Dock the patient table.
Use the UP foot pedal to raise the patient table to full up position, and move the cradle completely into the magnet bore to expose the table top height adjustment screw.

Figure 1. Table top height adjustment screw location

1 Table top height adjustment screw
2 Front of table
Use a standard head screw driver to remove the cover plug.
Adjust the screw to set the table top height equal to the bridge height.

Figure 2. Rolling surface on bridge and table

Item Description
1 Cradle
2 Rolling surface (path) on left and right sides of bridge and table top. Straight edges are used to show the paths.
3 Bridge
4 Table
Replace the cover plug.

Finalization

Dock the table.
Make sure that the cradle release functions properly.
Make sure that the LPCA connects to the cradle and that the cradle can move in and out of the bore.