Use this procedure to check all systems and functions on the machine. It is designed so the operator can make a quick check of machine operation while doing a walk around inspection and performing specific checks from the operator's seat.

Should a problem occur with the machine, helpful diagnostic information can be found in this checkout that will pinpoint the cause. This information may allow operator to perform simple adjustments, reducing machine down time. Use the table of contents to help find adjustment procedures.

The information obtained after completing the operational checkout will allow operator or authorized dealer to pinpoint a specific test or repair needed to restore the machine to design specifications.

A location will be required which is level and has adequate space to complete the checks. No tools or equipment are needed to perform the checkout.

Complete the necessary visual checks (oil levels, oil condition, external leaks, loose hardware, linkage, wiring, etc.) prior to doing the checkout. The machine must be at operating temperature for many of the checks.

Before starting this operational checkout, check diagnostic service codes in monitor. These service codes must be corrected or cleared before starting this checkout.

Start at the top of the left column and read completely down column before performing check. Follow this sequence from left to right. In the far right column, if no problem is found, operator will be instructed to go to next check. If a problem is indicated, operator will be referred to either a section in this manual or to an authorized dealer for repair.

CP94658,000017A -19-18DEC08-1/1

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Diagnostic Trouble Code Check

Always check for diagnostic trouble codes, and correct them before performing the operational checkout.

Diagnostic trouble codes are displayed on the Engagement Monitor Unit.

Sit in seat and access diagnostic trouble code menu.

YES: Correct all diagnostic trouble codes.

NO: Proceed with operational checkout.

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Monitor and Gauge Circuits Check

Sit in operator's seat.

Close cab door if equipped.

Buckle seat belt.

YES: Go to next check.

NO: Check F2 Monitor 15 Amp Fuse.

NO: Check Seat, Seat Belt, or Cab Door Switch.

NO: Go to your authorized dealer.

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Monitor and Gauge Circuits Check

Turn key switch ON.

Does engagement and monitor unit alarm sound?

Go to next check.

Check F1 Key Switch and Unswitched Accessory 15 Amp Fuse.

Check F3 Accessory 25 Amp Fuse.

Check K4 Accessory Relay.

Go to your authorized dealer.

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Horn Circuit Check

Press horn switch on right steering lever.

Does horn sound?

Go to next check.

Check F1 Key Switch and Unswitched Accessory 15 Amp Fuse.

Check F3 Accessory 25 Amp Fuse.

Check K4 Accessory Relay.

Go to your authorized dealer.

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Lights Circuit Check

Push light switch to middle position.

LOOK: Do front work lights and tail lights turn on?

Push light switch to upper position.

LOOK: Do front work lights and tail lights stay on and rear work light turn on?

If equipped, push dual flasher switch to the upper position.

LOOK: Do the dual flashers turn on?

Go to next check.

Check F4 Lights 20 Amp Fuse.

Check F1 Key Switch and Unswitched Accessory 15 Amp Fuse.

Check F3 Accessory 25 Amp Fuse.

Check K4 Accessory Relay.

Go to your authorized dealer.

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Beacon Light Check-If Equipped

Key switch on, engine off.

LOOK: Does beacon light operate with key switch on?

Check complete.

See your beacon light circuit.

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License Plate Lamp-If Equipped

Key switch on, engine off.

Switched on the work light switch on console.

LOOK: Does license plate lamp operate with key switch on?

Check complete.

See work light switch circuit.

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Windshield Wiper Circuit Check (If Equipped)

Close cab door.

Push windshield wiper and washer switch to the middle position.

LOOK: Does wiper operate?

Go to next check.

Check F1 Key Switch and Unswitched Accessory 15 Amp Fuse.

Check F3 Accessory 25 Amp Fuse.

Check K4 Accessory Relay.

Go to your authorized dealer.

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Windshield Washer Circuit Check (If Equipped)

Close cab door.

Turn on windshield wiper.

Push and hold windshield wiper and washer switch in the upper position.

IMPORTANT: Washer motor may be damaged if washer switch is held for more than 20 seconds, or continually operated with no fluid in the washer fluid tank.

LOOK: Does washer operate?

Go to next check.

Check washer fluid level.

Check washer hose for kinks or obstructions.

Check F1 Key Switch and Unswitched Accessory 15 Amp Fuse.

Check F3 Accessory 25 Amp Fuse.

Check K4 Accessory Relay.

Go to your authorized dealer.

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Engine Start Check

Position engine speed control lever in slow idle position.

Start engine.

Does engine speed increase briefly, then return to slow idle?

Go to next check.

Check slow idle and fast idle engine speeds.

Check governor linkage.

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Hydraulic Control Enable Check

Close cab door if equipped.

Run engine at slow idle.

Engage park brake.

Actuate boom and bucket functions.

LOOK: Do boom and bucket move?

Continue check.

Check park brake switch.

Move park brake switch to the run position to enable hydraulics.

Actuate boom and bucket functions.

LOOK: Do boom and bucket move?

Go to next check.

Check park brake switch.

Go to your authorized dealer.

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Auxiliary Hydraulic Override Check

Close cab door if equipped.

Operate auxiliary hydraulic function.

Unbuckle seat belt and exit machine.

Does machine shut down?

Return to seat, fasten seat belt, and close cab door if equipped.

Restart machine and operate auxiliary hydraulic function.

Press auxiliary hydraulic override switch.

LOOK: Does "BYPAS" appear in engagement and monitor unit display?

NOTE: Operator must exit machine within 15 seconds of pressing auxiliary hydraulic override switch.

Open cab door, and exit machine.

Does machine continue to operate after operator has exited the machine?

Return to seat, fasten seat belt, and close cab door if equipped.

Disengage auxiliary hydraulics.

LOOK: Does engagement and monitor unit exit "BYPAS" mode and return to last run data item?

Go to next check.

Check auxiliary hydraulic override switch.

See your authorized dealer.

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Park Brake Check

Close cab door if equipped.

CAUTION: Prevent injury from unexpected machine movement. Keep bystanders clear of machine.

Engage park brake.

Gradually move steering levers in the forward direction and then in the reverse direction.

IMPORTANT: Extreme movement of steering levers may cause engine to stall while trying to overcome park brake.

LOOK: Does machine move?

Continue check.

Check park brake switch.

Check park brake. Go to your authorized dealer.

CAUTION: Prevent injury from unexpected machine movement. Keep bystanders clear of machine.

Move park brake switch to release position to disengage park brake.

Gradually move steering levers in the forward direction and then in the reverse direction.

LOOK: Does machine move?

Go to next check.

Check park brake switch.

Check park brake. Go to your authorized dealer.

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Hydraulic Quik-Tatch Check (S.N. - 131876)

Close cab door if equipped.

Move park brake switch to the run position to enable hydraulics.

Press and hold lower part of hydraulic Quik-Tatch switch to unlock the Quik-Tatch latches.

LOOK/LISTEN: Do hydraulic Quik-Tatch latches release attachment?

Press and hold the upper part of hydraulic Quik-Tatch switch to lock the Quik-Tatch latches.

LOOK/LISTEN: Do hydraulic Quik-Tatch latches secure attachment?

Go to next check.

Hydraulic Quik-Tatch operates opposite of function indicated on switch. Go to your authorized dealer.

Hydraulic Quik-Tatch does not unlock or lock latches. Go to your authorized dealer.

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Electric Quik-Tatch Check (S.N. 131877 - )

Close cab door if equipped.

Press and hold lower part of electric Quik-Tatch switch to unlock the Quik-Tatch latches.

LOOK/LISTEN: Do electric Quik-Tatch latches release attachment?

Press and hold the upper part of electric Quik-Tatch switch to lock the Quik-Tatch latches.

LOOK/LISTEN: Do electric Quik-Tatch latches secure attachment?

Go to next check.

Electric Quik-Tatch operates opposite of function indicated on switch. Go to your authorized dealer.

Electric Quik-Tatch does not unlock or lock latches. Go to your authorized dealer.

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Back-Up Alarm Check (If Equipped)

CAUTION: Prevent injury from unexpected machine movement. Keep bystanders clear of machine.

Run engine at slow idle.

Drive machine in reverse.

LOOK/LISTEN: Does back-up alarm sound?

Go to next check.

Check back-up alarm. Go to your authorized dealer.

Check F1 Key Switch and Unswitched Accessory 15 Amp Fuse.

Check F3 Accessory 25 Amp Fuse.

Go to your authorized dealer.

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Heating and Air Conditioning System Check

NOTE: Engine will need to be at operating temperature for this check.

Run engine at slow idle.

Turn fan speed switch from off to slow, medium, and high speeds.

Does fan speed increase and/or decrease as switch is moved?

Turn fan speed switch to medium speed.

Turn temperature control to hot (red).

FEEL: Does warm air come out of air ducts?

Turn temperature control to cold (blue).

FEEL: Does cool air come out of air ducts?

Turn on air conditioner.

FEEL/LISTEN: Does cold air come out of air duct after a couple of minutes?

Go to next check.

Blower motor does not operate. Check Blower Motor 15 Amp Fuse.

Cab temperature does not change. Check Cab Temperature Control Dial.

Air conditioner does not operate. Check Air Conditioner Switch.

Go to your authorized dealer.

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Engine Speed Check

Set the monitor and engagement unit to display engine rpm.

Run engine at slow idle.

LOOK/LISTEN: Does engine run at about 1180-1200 rpm?

Run engine at fast idle.

LOOK/LISTEN: Does engine run at about 2930-2950 rpm?

Go to next check.

Check engine speed. Go to your authorized dealer.

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