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Operational Checkout

Use this procedure to make a quick check of machine operation by doing a walk around inspection and performing specific
checks from operator's seat.

Complete visual checks (oil levels, oil condition, external leaks, loose hardware, linkage, wiring, etc.) before performing
checkout.

Most checks will require machine systems to be at normal operating temperatures and a level area with adequate space to
operate machine. Some checks may require varied surfaces.

No special tools are necessary to perform the checkout.

If no problem is found, go to next check. If problem is indicated, an additional check or repair procedure will be suggested.

1 Diagnostic Trouble Code (DTC) Check

1A Display and Clear Trouble Codes

Action:

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

Check for active and stored diagnostic trouble codes (DTCs).

Diagnostic trouble codes can be displayed by using one of the following methods.

CAN Monitor Unit (CMU)

To access and clear DTCs using the CMU, see CAN Monitor Unit (CMU) Menu Structure—Service
Mode. (Group 9015-20.)
Service ADVISOR™ Diagnostic Application
To access and clear DTCs using Service ADVISOR™ diagnostic application, see Reading Diagnostic
Trouble Codes with Service ADVISOR™ Diagnostic Application. (Group 9015-20.)

LOOK: Are diagnostic trouble codes present that cannot be cleared?

Result:

YES: Correct all diagnostic trouble codes before proceeding. See Diagnostic Trouble Codes (DTCs) Quick Reference List.
(Group 9015-20.)

NO: Continue with operational checkout.

2 Operational Checks—Key Switch OFF, Engine OFF

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2A Battery Check

Action:

Push and hold SELECT button on CMU until battery volts are displayed.

LOOK: Do battery volts read a minimum of 24 volts?

Result:

YES: Check complete.

NO: Check for loose connection on battery power connector X49. If battery power connector is okay, check and recharge
batteries. See Check Battery Electrolyte Level and Terminals. (Operator's Manual.) Check voltage on each battery before
recharging.

NOTE: If one battery will not hold a charge, replace both batteries.

2B Horn Check

Action:

Push horn button.

LISTEN: Does horn activate?

Result:

YES: Check complete.

NO: Check horn 5 A fuse (F19). See Fuse and Relay Specifications. (Group 9015-10.)

If fuse okay, check horn circuit. See System Functional Schematic and Schematic Legend. (Group 9015-10.)

2C Seat Control Checks

Action:

NOTE:

For seat adjustment procedures, see Adjusting Seat. (Operator's Manual.)

If machine is equipped with air seat, key switch must be ON to raise seat.

Does seat raise and lower easily?

Does seat angle change easily?

Does lever move easily to unlock seat support?

Does seat move forward and rearward easily?

Does lever lock seat support in position when released?

Does seat back tilt forward and rearward easily?

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Does lever unlock and lock easily to hold seat back in position?

Result:

YES: Check complete.

NO: Inspect linkage and repair.

3 Operational Checks—Key Switch ON, Engine OFF

3A Battery Disconnect Switch Check

Action:

T118722B-UN: Battery Disconnect Switch

NOTE:

Battery disconnect switch is located inside of the right rear service door.

Turn battery disconnect switch OFF.

Turn key switch on.

LOOK: Do monitor indicator lights come on?

Result:

YES: Switch is malfunctioning. Check battery disconnect switch.

NO: Continue check.

Action:

Turn battery disconnect switch ON.

Turn key switch ON. Do not start engine.

LOOK: Do monitor indicator lights come on?

Result:

YES: Check complete.

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NO: Check battery disconnect switch.

3B Monitor Check

Action:

Turn key switch ON.

Observe monitor and note changes for first 3 seconds (bulbs, indicators and gauges).

LOOK/LISTEN: Do all lights come on and is the audible alarm activated?

Does the LCD display show “John Deere” and the model number?

Do all the gauge indicators point to approximately 12 o’clock position?

Does the backlighting for the gauges come on?

After four seconds observe changes in monitor.

LOOK: Do gauge indicators change from 12 o’clock to normal readings?

Result:

YES: Check complete.

NO: Check CMU ignition power 5 A fuse (F4). See Fuse and Relay Specifications. (Group 9015-10.)

If fuse okay, check monitor circuit. See System Functional Schematic and Schematic Legend. (Group 9015-10.)

3C Backup Alarm Check

Action:

Key switch ON.

Put park lock lever down position.

Move park lock lever to the UNLOCK (down) position.

Move transmission control lever to reverse position.

LISTEN: Does backup alarm activate?

Result:

YES: Check complete.

NO: Check for voltage at backup alarm. See Transmission Harness (W11) Wiring Diagram. (Group 9015-10.)

If no voltage is present, calibrate TCU. See Transmission Control Unit (TCU) Calibration. (Group 9015-20.)

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3D Front/Rear Wiper and Washer Motor Check—If Equipped

Action:

T199302A-UN: Wiper Switch

LEGEND:

1 - Left/Right Door Wiper Rocker Switch

2 - Front/Rear Wiper Rocker Switch

Key switch ON.

Push rocker switch (2) to first detent (middle) position.

LOOK: Do front and rear wipers operate?

Push rocker switch fully to momentary position and hold.

LOOK: Does the front/rear washer pump operate?

LOOK: Do front and rear wipers continue to operate?

Result:

YES: Check complete.

NO: Washer fluid reservoir may be empty. Check washer fluid.

Check front/rear wiper motor 10 A fuse (F21). See Fuse and Relay Specifications. (Group 9015-10.)

If fuse okay, check wiper circuit. See System Functional Schematic and Schematic Legend. (Group 9015-10.)

3E Left/Right Door Wiper and Washer Motor Check—If Equipped

Action:

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T199302A-UN: Wiper Switch

LEGEND:

1 - Left/Right Door Wiper Rocker Switch

2 - Front/Rear Wiper Rocker Switch

Key switch ON.

Push rocker switch (1) to first detent (middle) position.

LOOK: Do left and right wipers operate?

Push rocker switch fully to momentary position and hold.

LOOK: Does left/right washer pump operate?

LOOK: Do left and right wipers continue to operate?

Result:

YES: Check complete.

NO: Washer fluid reservoir may be empty. Check washer fluid.

Check left/right wiper motor 10 A fuse (F22). See Fuse and Relay Specifications. (Group 9015-10.)

If fuse okay, check wiper circuit. See System Functional Schematic and Schematic Legend. (Group 9015-10.)

3F Heater Blower Motor Check—If Equipped

Action:

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T199304A-UN: Air Conditioning

LEGEND:

1 - Air Conditioning Switch

2 - Blower Switch
3 - Temperature Control
4 - Air Duct (8 used)

Key switch ON.

Turn blower switch (2) to 1st, 2nd, 3rd, and 4th positions.

FEEL: Does air exit all ducts from roof?

Result:

YES: Check complete.

NO: Check heater blower 10 A fuse (F12). See Fuse and Relay Specifications. (Group 9015-10.)

If fuse okay, check heater blower circuit. See System Functional Schematic and Schematic Legend. (Group 9015-10.)

4 Operational Checks—Key Switch ON, Engine ON

4A Alternator Check

Action:

Start engine and operate at slow idle.

Start engine.

LOOK: Is ENGINE ALT VOLTS indicator light on?

Result:

YES: Check and recharge batteries. See Check Battery Electrolyte Level and Terminals. (Operator's Manual.) Check
voltage on each battery before recharging.

NOTE: If one battery will not hold a charge, replace both batteries.

Test alternator. See Alternator Test Procedure. (Group 9015-20.)

NO: Check complete.

4B Air Filter Restriction Indicator Check

Action:

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T206395-UN: Air Filter Restriction Indicator Light

Operated engine at slow idle and fast idle.

LOOK: Does air filter restriction indicator light come on?

Result:

YES: Clean or replace air cleaner elements. See Replace Air Cleaner Elements. (Operator's Manual.)

If air cleaner elements are okay, check air filter restriction switch circuit. See System Functional Schematic and Schematic
Legend. (Group 9015-10.)

NO: Check complete.

4C Slow and Fast Idle Check

Action:

Run engine at slow and fast idle while noting rpm readings on monitor.

LOOK: Are slow and fast idle displayed on monitor?

Item Measurement Specification

Engine Slow Idle Speed 880—910 rpm

Engine Fast Idle Speed 2255—2285 rpm

Result:

YES: Check complete.

NO: Check crankshaft position sensor circuit connections. See Engine Control Unit (ECU) Circuit Theory of Operation.
(Group 9015-15.)

Check monitor connections. See CAN Monitor Unit (CMU) Circuit Theory of Operation. (Group 9015-15.)

4D Park Brake Valve Leakage Check

Action:

Hydrostatic oil must be at operating temperature 66°C (150°F). Oil temperature can be viewed on monitor.

Adjust engine speed control to slow idle with park lock lever in the LOCK (up) position.

Observe charge pressure reading on monitor display. The charge pressure can be accessed as a live value in the
CMU menu structure. See CAN Monitor Unit (CMU) Menu Structure—Service Mode. (Group 9015-20.)

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LOOK: Does pressure drop as park lock lever is moved down, then return to original value?

Fully depress decel/brake pedal, then release.

LOOK: Does pressure drop as decel/brake pedal is released, then return to original value?

LOOK: Do tracks creep or move?

Result:

YES: Isolate park brakes, brake valve to locate leakage.

YES: Tracks move in neutral. Inspect park brake valve. See Park Brake Valve Operation. (Group 9026-05.) Perform Park
Brake Test. (Group 9026-25.)

NO: Check complete.

4E Decelerator/Brake Pedal and Park Brake Check

Action:

Operate engine at slow idle.

CAUTION:

Pushing on decel/brake pedal will stop machine abruptly.

Move park lock lever to the UNLOCK (down) position.

Operate machine slowly in forward. Fully depress decel/brake pedal and then release.

LOOK: Does machine must stop when pedal is depressed and must move when pedal is released.

Depress decel/brake pedal until spring resistance is felt.

Adjust engine speed to fast idle and transmission speed to 3.0.

Move transmission control lever to forward position.

Release decel/brake pedal.

LOOK: Does machine accelerate smoothly to maximum speed?

NOTE:

Decel/brake response time can be set to operator preference. See CAN Monitor Unit (CMU) Menu
Structure—Service Mode. (Group 9015-20.)

Result:

YES: Check complete.

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NO: Inspect park brake valve. See Park Brake Operation. (Group 9026-05.) Perform Transmission Control Unit (TCU)
Calibration. (Group 9015-20.)

4F Transmission Control Lever (TCL) Check

Action:

CAUTION:

Prevent possible injury from machine movement. Make sure there is adequate room and be
aware of bystanders.

Operate engine at 1500 rpm.

Put transmission speed to 2.0.

Make several shifts from neutral to forward, neutral to reverse, and then forward to reverse.

Item Measurement Specification

Engine Speed 1500 rpm

LOOK: Does machine shift smoothly?

LOOK: Does machine operate in forward and reverse?

NOTE:

Transmission control lever shift rate can be set to operator preference. Low has a slower reaction
time and high has a quicker reaction time. See CAN Monitor Unit (CMU) Menu Structure—Service
Mode. (Group 9015-20.)

Result:

YES: Check complete.

NO: Test transmission control lever sensor.

4G Transmission Speed Check

Action:

Operate engine at slow idle.

Check transmission speed. Transmission speed should be defaulted to 1.6.

LOOK: Does transmission speed default to 1.6?

Increase transmission speed to 3.0.

LOOK: Does transmission speed increase to 3.0?

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Result:

YES: Check complete.

NO: Calibrate TCU. See Transmission Control Unit (TCU) Calibration. (Group 9015-20.)

4H Tracking and Maximum Speed Check

Action:
IMPORTANT:

Track sag must be at specification and machine must be driven on a level surface for all tracking checks.

Push decelerator mode switch to ENGINE MODE position.

Operate engine at fast idle.

Put transmission speed to 3.0.

Move park lock lever to the UNLOCK (down) position.

Push decelerator pedal fully to stop.

Move TCL to FORWARD position.

Slowly increase engine speed from slow to fast idle by slowly raising the decelerator pedal.

LOOK: Does machine speed increase as engine rpm increases? Is tracking straight at all speeds?

Repeat check for reverse travel.

Result:

YES: Check complete.

NO: Calibrate machine. Perform Transmission Control Unit (TCU) Calibration. (Group 9015-20.)

See Mistrack/Indexes—Flowchart and See Machine Will Not Reach Full Speed—Flowchart. (Group 9026-15.)

4I Reverse Fan Check (If Equipped)

Action:

T194319-UN: Reverse Fan Switch

Push the reverse fan switch to enable manual mode (reverse engine fan indicator light on).

NOTE:

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Reverse fan function cannot be operated twice within one minute. Wait one minute before
attempting to reverse fan direction again. Fan will not reverse until transmission control lever is out
of forward position.

LISTEN/LOOK: Does fan reverse direction and operate at full speed for 15 seconds?

Fan will change directions and operate at normal speed.

Result:

YES: Check complete.

NO: Verify that function is enabled in the CMU machine configuration menu. See CAN Monitor Unit (CMU) Menu
Structure—Service Mode. (Group 9015-20.)

If function is enabled, see Hydraulic Fan Drive Operation. (Group 9026-05.)

4J Blade Control Lever Check

Action:

T8404AC-UN: Control Valve Linkage and Float Detent

LEGEND:

A - Blade Tilt Right

B - Blade Lift
C - Blade Tilt Left
D - Blade Down
E - Blade Float

Push hydraulic enable switch to the LOCKED position to disable the pilot controls.

Move control lever to positions (A—D) and release.

LOOK/FEEL: Does blade control lever move to all positions easily and return to neutral when released?

NOTE:

Blade control lever will not return to neutral when moved to blade float position (E). Lever must be
manually pulled from float position.

Result:

YES: Check complete.

NO: If functions hesitate or do not operate smoothly, see Diagnose Hydraulic System Malfunctions. See Diagnose
Integrated Grade Control (IGC) Hydraulic System Malfunctions. (Group 9025-15.)

4K Hydraulic Enable Circuit Check

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Action:

T194312-UN: Hydraulic Enable/Boom Down Switch

Operate engine at slow idle.

Hydraulic enable switch in the LOCKED position. Pilot controls disabled.

Move blade control lever to all positions.

LOOK: Do any blade functions operate?

Result:

YES: Check hydraulic enable switch and circuit. See System Functional Schematic and Section Legend. (Group 9015-10.)

NO: Continue check.

Action:

Push hydraulic enable switch to the UNLOCKED position to enable the pilot controls.

Move blade control lever to all positions.

LOOK: Do all blade functions operate?

Result:

YES: Check complete.

NO: Check hydraulic enable switch and circuit. See System Functional Schematic and Section Legend. (Group 9015-10.)

4L Hydraulic Controls Check

Action:

Operate engine at slow idle.

NOTE:

For machines equipped with IGC, put blade control in manual mode by pushing the IGC on/off
button located on the joystick handle. The blade control is in manual mode when the auto blade
light on the CMU is off.

Slowly move blade control lever to all positions except blade float detent.

For machines equipped with PAT and IGC, push blade angle buttons on joystick handle to rotate blade in both
directions.

LOOK/FEEL: Do all blade functions operate smoothly, without hesitation?

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Result:

YES: Check complete.

NO: See Diagnose Hydraulic System Malfunctions and/or see Diagnose Integrated Grade Control (IGC) Hydraulic System
Malfunctions. (Group 9025-15.)

4M Quick-Drop Valve Check (Outside Dozers Only)

Action:

Operate engine at fast idle.

Raise blade to maximum height.

NOTE:

Quick-Drop is activated when control lever is in float position or when lever is at the end of power
down position.

Move control lever to float position and record time it takes to lower blade to ground from maximum height.

LOOK: Does it take one second or less for blade to lower to ground with Quick-Drop activated?

Raise blade after blade has been lowered with quick drop valve.

LOOK: Does blade raise immediately?

Result:

YES: Check complete.

NO: See Quick-Drop Valve Operation. (Group 9025-05.)

4N Blade Float Check

Action:

Operate engine at slow idle.

Raise front of machine off ground by fully lowering and tilting blade.

Push hydraulic control lever into float detent position.

LOOK: Does front of crawler lower to ground?

FEEL: Does hydraulic control lever stay in float detent position?

Result:

YES: Check complete.

NO: Check blade float detent coil and hydraulic enable circuit. See System Functional Schematic and Section Legend.
(Group 9015-10.)

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4O Cycle Time Check

Action:

Use the CAN Monitor Unit (CMU) or Service ADVISOR™ Diagnostic Application to read engine rpm and hydraulic oil
temperature.

Item Measurement Specification

Hydraulic Oil Temperature 57—66°C

135—150°F

Engine Speed Fast Idle

Blade Raise—OSD Cycle Time 2.6 seconds

Blade Raise—PAT Cycle Time 2.3 seconds

Blade Power Down—OSD Cycle Time 2.0 seconds

Blade Power Down—PAT Cycle Time 1.6 seconds

Blade Tilt Left—OSD Cycle Time 0.8 seconds

Blade Tilt Left—PAT Cycle Time 1.1 seconds

Blade Tilt Right—OSD Cycle Time 0.9 seconds

Blade Tilt Right—PAT Cycle Time 1.2 seconds

Blade Angle (PAT and IGC)—Left Cycle Time 3.8 seconds

Blade Angle (PAT and IGC)—Right Cycle Time 4.0 seconds

Do cycle times meet or exceed specification?

Result:

YES: Check complete.

NO: Check hydraulic pump. See Hydraulic Pump Flow Test. (Group 9025-25.)

4P Air Conditioner Check—If Equipped

Action:

T199304A-UN: A/C Controls

LEGEND:

1 - Air Conditioning Switch

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2 - Blower Switch
3 - Heater Temperature Control
4 - Air Duct (8 used)

Operate engine at fast idle.

Turn air conditioner switch (1) to on position. On position is up (Snow Flake). Position down is not used for this test.

Turn blower switch (2) to 4th position.

Wait for any warm air in duct system to dissipate.

FEEL: Is air from ducts cool?

Result:

YES: Check complete.

NO: See Diagnose Air Conditioning System Malfunctions. (Group 9031-15.)

Service ADVISOR is a trademark of Deere & Company LW86157,000011F-19-01JUN07

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