Miller Electric CBI 801D manual Overload Protection Figure, Incorrect Fuse can damage unit

INCORRECT INSTALLATION or misaligned plugs can damage circuit board.

• Be sure that plugs are properly installed and aligned before closing access door.

EXCESSIVE PRESSURE can break circuit board.

• Use only minimal pressure and gentle move- ment when disconnecting or connecting board plugs and removing or installing board.

If any circuit board is not working, follow the precautions above, and contact the nearest Factory Authorized Ser- vice Station/Service Distributor.

Perform work only at a static−safe work area.

•

WARNING: ELECTRIC SHOCK can kill

• Do not touch live electrical parts.

• Stop engine, and disconnect negative (−) bat- tery cable from battery before inspecting, maintaining, or servicing.

HOT ENGINE PARTS can cause severe burns.

• Wear protective gloves and clothing when working on a hot engine.

CAUTION: ELECTROSTATIC DISCHARGE (ESD) can damage circuit board compo- nents.

• Put on properly grounded wrist strap BE- FORE handling circuit boards.

• Transport all static−sensitive components in proper static-shielding carriers or packages.

CIRCUIT BOARD HANDLING TIONS

PRECAU-

9-4.

2. Locate shutdown switch MS1 on left, rear side of front access door.

3. Locate fuse F on bottom of shutdown switch MS1.

4. Remove and check fuse, and replace if neces- sary.

5. Close and secure front access door.

Remove securing screws, and open upper front access door.

1.

If CB3 opens, 115 volts ac output to socket/terminal D of REMOTE 9 receptacle RC3 and terminal strip 3T stops, and the remote amperage/voltage control will not function.

C. Replacement Of Low Oil Pressure/High Oil Temperature Shutdown System Fuse F

WARNING: Read and follow safety informa- tion at beginning of Section 9-3 before pro-

ceeding.

6.Start engine following procedures outlined in Section 7 (Sequence of Operation) of this man- ual. If the unit does not start after cranking for twenty seconds, stop the jump starting proce- dure. More than twenty seconds seldom starts the engine unless some mechanical adjustment is made.

7.Remove jumper cable from engine block.

8.Remove other end of same cable from booster battery negative (−) terminal.

9.Remove other jumper cable from booster battery positive (+) terminal.

10.Remove remaining end of cable from welding generator battery positive (+) terminal.

11.Discard damp cloths.

9-3. OVERLOAD PROTECTION (Figure 4-2)

WARNING: ELECTRIC SHOCK can kill.

• Do not touch live electrical parts.

•Stop engine, and disconnect negative (−) bat- tery cable from battery before inspecting, maintaining, or servicing.

MOVING PARTS can cause serious personal injury.

•Keep away from moving parts such as fans, belts, and rotors.

HOT ENGINE PARTS can cause severe burns.

•Wear protective gloves and clothing when working on a hot engine.

INCORRECT FUSE can damage unit.

•Be sure replacement fuse is same size, type, and rating.

A.Circuit Breaker CB1 (Figure 4-2)

WARNING: Read and follow safety informa- tion at beginning of Section 9-3 before pro- ceeding.

Circuit breaker CB1 protects the 120 volts ac auxiliary power terminals on terminal strip 3T from overload. CB1 is located behind the lower front door. When CB1 opens, the ON/OFF switch goes to the OFF position, and 3T will not operate. If CB1 opens, locate and correct the prob- lem, and place the circuit breaker switch in the ON posi- tion.

B. Circuit Breaker CB3 (Figure 4-2)

WARNING: Read and follow safety informa- tion at beginning of Section 9-3 before pro- ceeding.

Circuit breaker CB3 protects the unit wiring from over- load and damage. CB3 is located behind the lower front door.

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