background image

Power Supply Replacement—All Microprocessor Controlled Machines Except the CBW

®

PELLERIN MILNOR CORPORATION

Figure 1: Mounting the Power Supply Board

Arrangement of Mounting Hardware

Legend

1.

 Power supply board

2.

 Mounting bracket, if used,

or Processor box

3.

 Nylon bolt, nuts and

spacer—three places

4.

 Metal bolt, nuts and lock

washers; nylon spacer—
one place: 

must be

located at one of the
grounded mounting
holes on the power
supply

1.1.

Kit 08PSS3401X (for Newer Machines)

—Merely swap out the old with the new power

supply. Make certain that a good connection is established between the ground trace on the

power supply board and the machine chassis, as shown in Figure 1. If the new power supply is

not a direct match for the old, contact the Milnor factory.

1.2.

Kit 08PSS3401N (for Older Machines)

—Various mounting brackets are supplied with

this kit. If your original equipment does not accommodate the new power supply, select the

mounting configuration that permits you to mount the new power supply in approximately the

same position as the old one.

The mounting hardware supplied with the kit attaches the power supply to its mounting bracket.

Hardware to attach the mounting bracket to the machine is not supplied with the kit. Use any

appropriately sized bolts, nuts and lock washers or self-tapping screws.

Recommended hardware installation is as follows:
1. If a mounting bracket will be used, determine how it will be attached. Carefully prepare the

Processor box as required to accept it, but do not install it until step 3.

2. Attach the power supply to the mounting bracket or directly to the Processor box, as shown in

Figure 1. One of the four bolts supplied with the kit is metallic. This bolt must be placed in

one of the two grounded mounting holes on the power supply ( hole through a metallic trace

on the power supply's printed circuit). Ensure that the power supply is grounded to the

mounting bracket or Processor box by scraping the paint from around the hole on the bracket

or box with the metallic bolt. Be sure the metal nut and lock washer do not touch any other

component.

Summary of Contents for 08PSS3401N

Page 1: ...14 Access Date 20020314 Depth detail Applicability CUU Language Code ENG01 Purpose publication Format 1colA Document Power Supply Replacement All Microprocessor Controlled Machines Except the CBW PELLERIN MILNOR CORPORATION POST OFFICE BOX 400 KENNER LOUISIANA 70063 0400 U S A ...

Page 2: ...the kit parts list were supplied Contact the Milnor Parts Department if any items are missing WARNING 1 Electrocution and Electric Shock Hazards You can be electrocuted or seriously injured if you come in contact with 240 VAC or 120 VAC depending on model power which is present in the processor electric box Lock off and tag out power to the machine while replacing the power supply Use caution whil...

Page 3: ...guration that permits you to mount the new power supply in approximately the same position as the old one The mounting hardware supplied with the kit attaches the power supply to its mounting bracket Hardware to attach the mounting bracket to the machine is not supplied with the kit Use any appropriately sized bolts nuts and lock washers or self tapping screws Recommended hardware installation is ...

Page 4: ...or codes but the pin numbers will be the same as shown in this figure Consult the original schematic manual for wire colors on an older machine or contact the Milnor factory Notice 3 The wire carrying 12VDC from the power supply is not used on washer extractors with the Milnor System 7 control or those with model numbers ending in C4A or M4A When this wire is not used terminate it with a wire nut ...

Page 5: ...e 9a Wire designation 9b Wire colors on five pin connector wire harness supplied with kit 10 Metal oxide varister MOV Observing caution statement 2 and referring to Figure 2 make the electrical connections appropriate for your machine as follows 2 1 Kit 08PSS3401X for Newer Machines Once the power supply has been swapped out and the electrical connectors plugged into the new power supply all that ...

Page 6: ...he connector on the processor board matching the wires as shown in Figure 2 2 2 3 Processor to Power Supply Connections Other Machines If your original processor to power supply wire harness has the same six pin connector and same color wires as the one supplied with the kit you may simply attach the existing connector to the new power supply If not cut off the old connector the one that was attac...

Reviews: