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Circuit breaker replacement, 10 i, Power switch replacement – AirSep MN138-1 H User Manual

Page 26

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20

MN138-1 Rev H

02/14

8. With the spring behind the seat, screw the diaphragm stem guide back into the

body of the regulator. (Do not over tighten.)

9. Install a clean or replacement diaphragm.
10. Put the large spring and slip ring into the bonnet, and screw the bonnet onto the

regulator body.

11.

Reset the product regulator as described in Section 4.8.1

.

4.9

Circuit Breaker Replacement

Circuit Breaker Removal
To remove the circuit breaker, follow the steps below:

1. Set the unit’s

I

/0 switch to the “0” position and unplug the power cord.

2. Remove the front panel and locate circuit breaker.
3. To gain access to the underside of the circuit breaker, remove screw securing the

right mounting plate assembly to the center section using a Phillips-head
screwdriver.

4. Lift assembly out from unit and disconnect wires from circuit breaker.
5. Remove the securing ring holding the circuit breaker to the mounting plate.

Circuit Breaker Installation
Follow the removal procedure for the circuit breaker in reverse order to install the new
circuit breaker. Wire connections on circuit breaker can be made to either terminal.

4.10 I/

0

Power Switch Replacement

I

/0 Power Switch Removal

To remove the

I

/0 power switch, follow the steps below:

1. Set the unit’s

I

/0 switch to the “0” position and unplug the power cord.

2. Remove the front panel and locate the

I

/0 power switch.

3. To gain access to the underside of the switch, remove screw securing the right

mounting plate assembly to the center section using a Phillips-head screwdriver.

4. Lift assembly out from unit and disconnect wires from switch.
5. To allow easier access to the

I

/0 power switch, remove the circuit breaker from

mounting plate, leaving wires connected. (Refer to circuit breaker removal
procedure 4.9.1).

6. With circuit breaker removed, use large adjustable pliers to unlock the top and

bottom securing tabs of power switch while pushing power switch through front
of mounting plate at the same time.

I/

0 Power Switch Installation

Follow the removal procedure for the

I

/0 power switch in reverse order to install a new

power switch.

1. Be sure to reinstall the new switch properly by having the ‘0’ on the switch

located on the bottom when finished.

2. Wire connections on the left side of switch should be from circuit breaker and

hourmeter wires. Wire connections on the right side of switch from the circuit
board wires. (The smaller size wires are from the circuit board.)

3. Same side wire connections of power switch can be made to either terminal.