- SIGNA™ Hero 3.0T Service Methods
- 5852800-8EN Revision 1.0
- Object ID: 00000018WIA30E97C40GYZ
- Topic ID: id_2019637 Version: 2.9
- Date: Oct 11, 2021 6:31:30 PM
Removing the reciprocating pump assembly
Removes the reciprocating pump assembly from the dockable patient table.
Procedure
- Raise the patient table to the full up position.
Lower the table lock safety bar.Warning
Personal injury possibilityWhen doing maintenance on the table in its up position, severe personal injury can occur if the table is accidentally lowered during maintenance.Make sure the lock safety bar is safely in place.Figure 1. Table lock safety bar 
1 Safety bar up (unlocked) 2 Safety bar down (locked) - Release the hydraulic pressure by gently pressing the Down foot pedal until the table is supported by lock safety latch.
- Put absorbent towels under the reciprocating pump area.
- Use a
slotted screwdriver to unfasten the hose clamp to disconnect the hydraulic oil (low pressure) hose connection from the pump.
- Fasten the end of the hose in an upright position to prevent oil from leaking.
- Using a backer wrench to hold the pump-side fittings in place, use a 0.75 inch open-end wrench to disconnect both black high-pressure hoses from the top and side of the pump.
Figure 2. Left side view of lower table chassis 
1 Top high-pressure hose 2 Side high-pressure table hose 3 Hydraulic oil (low pressure) hose 4 Reciprocating pump 5 Clip and shaft
- Use a slotted screwdriver to remove the clip and pin from the rear of the pump, then remove them from the front of the pump. See Figure 3.
- Slide the pump assembly away from the table chassis and remove it.
Figure 3. Front and rear clips, pin and shaft 
1 Rear clip and pin 2 Reciprocating pump assembly 3 Front clip and shaft