Jacobsen AR331 User Manual

Parts Manual
WARNING
Warning: If incorrectly used, this machine can
cause severe injury. Those who use and maintain
this machine should be trained in its proper use,
warned of its dangers, and must read the entire
manual before attempting to set up, operate, adjust,
or service the machine.
When Performance Matters.
™
GB
Rotary Trim Mower
062801-D400 - AR331, Kubota® D1105-E4B, 3WD, Treaded Tires
679460-Rev A

Jacobsen AR331 Specifications

General

Engine Manufacturer	Kubota
Fuel Type	Diesel
Transmission Type	Hydrostatic
Deck Material	Steel
Engine	WG972-GL
Cutting Height	0.25 - 2.5 inches
Engine Model	WG972-GL
Turning Radius	18 inches
Standard Tire Size - Rear	23 x 10.5 - 12

Summary

Parts Manual

1.1 Operator Platform

2.1 Seat Options

3.1 Armrest and Control Panel

4.1 Traction Pedal

5.1 Traction Linkage

6.1 Chassis

7.1 Front Axle Assembly

8.1 Front Axle

9.1 Rear Axle Assembly

10.1 Rear Axle

11.1 Air Filter

12.1 Radiator

13.1 Remote Engine Oil Cooler and Filter

14.1 Engine Mounting

15.1 Engine and Pumps

16.1 Engine Exhaust

17.1 Fuel Tank and Routing

18.1 Hydraulic Tank and Hood

19.1 Hydraulic Valve Assembly

20.1 3WD Traction Hydraulics

21.1 3WD Gear Pump and Steering Hydraulics

22.1 Front And Rear Motor Hydraulics

23.1 Front And Rear Lift Hydraulics

24.1 Drain Hydraulics

25.1 Brake Valve and Charge Hydraulics

26.1 Oil Cooler Hydraulics

27.1 Electrical

28.1 Side Shift Attachment

29.1 Brake Valve

30.1 Lift-Weight Transfer Valve

31.1 Steering Cylinder

32.1 Center, Left and Right Decks

32.1 Center, Left and Right Decks (Cont....)

33.1 Deck Valve

34.1 Rotary Bump Stop

35.1 Lift Arms

36.1 Rotary Unit Mounting

37.1 Steering Valve

38.1 Gear Pump

39.1 Traction Pump

39.1 Traction Pump (Continued)

40.1 3WD Rear Wheel Motor

41.1 Electrical Schematic

42.1 Hydraulic Schematic

42.1 Hydraulic Schematic (Continued)

12.1 ENGINE SPECIFICATION

INTRODUCTION

SAFETY INSTRUCTIONS

3.1 HOW TO OPERATE SAFELY

Detailed instructions for safe operation and preparation before use.

3.3 OPERATION

Rules and precautions for operating the mower safely.

3.3.5 IMPORTANT SAFETY NOTES

Critical safety reminders and warnings for mower operation.

CONTROLS

5.2 CONTROL PANEL

5.2.H.4 ENGINE START

5.2.H.5 THE ENGINE WILL NOT START

5.2.H.20 FAULT LOG

5.2.H.23 INPUT/OUTPUT DIAGNOSTICS (I/O DIAGNOSTICS)

5.2.H.33 WARNING - OIL PRESSURE FAULT

Explanation of the oil pressure fault warning and required actions.

5.2.H.34 WARNING CLEAR RADIATOR SCREENS

Explanation of the engine overheat warning and cleaning procedure.

5.2.H.35 WARNING - CAN TIMEOUT

Explanation of the communications fault warning and recommended actions.

5.2.H.36 WARNING - BATTERY FAULT

Explanation of the low battery voltage warning.

5.2.H.37 WARNING - CONTROLLER I/O FAULT

Explanation of a controller input/output fault.

5.3 THROTTLE LEVER

5.5 TRACTION PEDAL

5.6 MOW SPEED LEVER

OPERATION

6.1 DAILY INSPECTION

Step-by-step guide for performing daily pre-operation checks.

6.2 OPERATOR PRESENCE AND SAFETY INTERLOCK SYSTEM

Explanation and testing procedure for the safety interlock system.

6.3 PROCEDURE FOR OPERATION

General operating procedures and safety precautions.

6.4 TO FIT THE CUTTING UNITS TO THE MACHINE

Step-by-step instructions for attaching cutting units to the mower.

6.5 OPERATION OF THE MACHINE

Daily checks and initial startup procedures for the mower.

6.6 HOW TO START THE ENGINE

Procedure for starting the engine, including cold start steps.

6.7 HOW TO DRIVE

Instructions on how to operate the mower's driving controls.

6.8 HOW TO MOW

Steps for engaging and performing mowing operations.

6.9 TO STOP THE ENGINE

Procedure for safely shutting down the mower's engine.

6.13 MOWING ON SLOPES

Precautions and techniques for mowing on slopes.

ADJUSTMENTS

7.1 GENERAL PRECAUTIONS

Important safety and procedural notes for adjustments.

7.3 WEIGHT TRANSFER ADJUSTMENT

7.4 ENGINE: FAN BELT - DIESEL

7.5 NEUTRAL SWITCH ADJUSTMENT

7.7 TRACTION PEDAL STOPS

7.8 CUTTING UNIT LIMIT SWITCH

7.9 CUTTING HEIGHT ADJUSTMENT (OPTION - QUICK RELEASE PIN)

7.10) CUTTING BLADE CHANGE

Step-by-step guide for safely changing mower blades.

7.13 TORQUE SPECIFICATION

MAINTENANCE AND LUBRICATION

8.1 MAINTENANCE AND LUBRICATION CHARTS

Service interval chart outlining maintenance tasks and their frequency.

8.2 ENGINE LUBRICATION

Diagrams and instructions for engine oil level check and change.

8.3 ENGINE COOLANT

Procedures for checking and changing the engine coolant.

8.4 ENGINE: FAN BELT - DIESEL

8.5 HYDRAULIC FILTER

Instructions for replacing the hydraulic filter and checking fluid level.

8.6 HYDRAULIC SYSTEM

Procedures for draining and replacing hydraulic oil and filter.

8.7 HYDRAULIC HOSES

8.8 FUEL

8.9 REPLACING FUEL FILTERS

Step-by-step instructions for replacing fuel filter cartridges.

8.10 FUEL SYSTEM

8.11 AIR CLEANER

Instructions for servicing and cleaning the air filter element.

8.13 CUTTING UNIT 674381 LUBRICATION

8.15 INSPECT BLADES

Guidelines for inspecting mower blades for damage and wear.

8.16 BLADE SHARPENING

Procedures and precautions for sharpening mower blades.

8.17 BATTERY

Instructions for battery access, servicing, and connection/disconnection.

8.18 CHARGING THE BATTERY

Procedures and safety warnings for charging the mower battery.

8.20 WHEEL MOUNTING PROCEDURE

8.21 ROPS

Inspection and maintenance guidelines for the Roll Over Protective Structure.

8.23 MOWER STORAGE

PROBLEM SOLVING

9.1 ENGINE PROBLEM DIAGNOSTICS

Troubleshooting guide for common engine starting and running problems.

QUALITY OF CUT

10.1 QUALITY OF CUT PROBLEM SOLVING

10.2 THE STEP CUT

10.3 SCALPING

10.4 STRAGGLERS

10.5 STREAKS

10.6 WINDROWING

10.7 MISMATCHED CUTTER DECKS

FUSES AND RELAYS

11.1 FUSE AND RELAY/COMPONENT IDENTIFICATION

Visual guide to the location and rating of fuses and relays.

SPECIFICATIONS

12.1 ENGINE SPECIFICATION

Detailed specifications for the Kubota D1105-E4B diesel engine.

12.3 MACHINE SPECIFICATION

General specifications for the mower's frame, transmission, and systems.

12.6 SLOPES

Warning and calculation method for safe mowing on slopes.

12.7 CUTTING UNIT SPECIFICATION

Detailed specifications for the cutting unit assembly.

QUICK START GUIDE

STARTING THE ENGINE

Step-by-step guide for starting the mower's engine.

CONTROLS

Overview and identification of the mower's control panel components.

DRIVING

MOWING

VISUAL DISPLAY