Ohmeda 3000 - Disassembly and Repair; Heater Module Repairs

5/Disassembly and Repair
CAUTION: Use the Static Control Work Station
(Part No. 0175-2311- 000) to help ensure that static
charges are safely conducted to ground. The Velos-
tat material is conductive. Do not place electrically
powered circuit boards on it.
5.1 Heater Module Repairs
A. Heater Housing Disassembly
{Figures 5-1 and 5-2)
1. Disconnect the Infant Warmer System Power
Cord.
2. Rotate the heater to the X-ray position.
3. Remove the three Phillips head mounting screws
for the back cover, and remove the cover.
4. Disconnect the heater housing connector.
Squeeze the locking tabs on the rear of the plug
to disengage the lock mechanism.
5. Remove the ground wire for the heater housing.
6. Remove the four mounting screws for the front
cover plate and remove the plate.
7. Remove the four mounting screws for the front
heater housing cap and remove the cap.
8. Push the heater assembly from the rear out the
front of the heater housing. Avoid bending the
rear portion of the heater assembly.
Heater Housing
Connector
Examination
Lamp
Rear Heater
Housing Cap SJ
Mounting
一
7
Screw
Ground
Wire
Figure 5-1
Removal of Back Cover from Heater Assembly
9. To ease disassembly the four mounting screws
for the rear heater housing cap may be loosened.
Do not remove the mounting screws.
Note: The heater, alarm lamp sockets, examination
light socket, and wiring harness can be replaced
when the heater assembly is removed.
B. Heater Replacement
(Figure 5-2)
1. Hold each terminal on the heater rod to ensure
no strain is placed on the element while remov-
ing the heater wire connection screws from both
ends of the heater.
2. Remove the four mounting bolts for the front
mounting plate and move it to the side.
3. Slide the heater rod out from the front of the hea-
ter assembly.
4. Slide the replacement heater rod in from the
front of the heater assembly.
5. Hold each terminal on the heater rod to ensure
no strain is placed on the element while replac-
ing the heater wire connection screws on both
ends
of the heater.
Note: Position the wires at a 90° angle to the heater
rod, to provide maximum wire spacing.
6. Place the front mounting plate in position and re-
place the four mounting bolts.
Mounting
Rear Cover