Jacobsen Eclipse series

Questions and Answers

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carterheatherJul 27, 2025
What to do if Jacobsen Eclipse Lawn Mower engine will not start?
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  Adriana WatsonJul 27, 2025
  If your Jacobsen Lawn Mower's engine won't start, several factors could be the cause. Make sure the choke is in the correct position (refer to the Engine Manual for guidance). Check the fuel tank; if it's empty or contains dirty fuel, drain it and refill with fresh, clean fuel. Ensure the fuel shut-off valve is open. Also, the engine switch may be off, so turn it to the 'On' position. For issues related to the engine or spark plug, consult the Engine Manual.
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Theresa PowellAug 2, 2025
Why is my Jacobsen Lawn Mower engine hard to start and stalls?
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  Robert HernandezAug 2, 2025
  If your Jacobsen Lawn Mower engine is hard to start, runs poorly, loses power, or stalls, consider these potential causes: The choke might be in the wrong position (refer to the Engine Manual), the fuel could be dirty or incorrect (refill with the proper grade of clean fuel), there might be loose wiring (check the spark plug wire), the air intake could be plugged (clean the air intake and air cleaner), or the vent in the fuel cap might be plugged (clean the fuel cap).
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raymondscottAug 8, 2025
Why Jacobsen Lawn Mower unit does not have power?
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  Anthony HarmonAug 8, 2025
  Your Jacobsen Lawn Mower unit might not have power for several reasons: the power connector could be disconnected (connect it), the batteries might be discharged (fully charge them), the engine might not be running (start it before energizing the unit), the 50 Amp fuse could be blown (open the battery tray and replace the fuse), the 20 Amp circuit breaker might be tripped (reset it), the battery could be defective (perform a load test and replace as needed), or the O.P.C. bail could be engaged (disengage it and restart).
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Robert BradleyAug 14, 2025
What to do if Jacobsen Eclipse Lawn Mower reel does not cut?
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  Vincent AshleyAug 14, 2025
  If the reel on your Jacobsen Lawn Mower doesn't cut or cuts unevenly, it could be due to several reasons: The reel to bedknife might not be adjusted properly (adjust it), the reel switch might be in the off position (turn it on), there could be a reel motor fault (check the LCD display and service the reel motor), the battery charge might be low (fully charge the battery pack), or there could be an over voltage condition (adjust the generator output).
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Kevin MillerAug 20, 2025
How to fix Jacobsen Eclipse Lawn Mower that does not react properly to O.P.C. Lever?
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  Billy GardnerAug 20, 2025
  If your Jacobsen Lawn Mower isn't reacting properly to the O.P.C. Lever, check the following: Ensure the power switch is on by following the proper start-up procedure. Make sure the parking brake is disengaged. Verify the reel switch is in the on position. Inspect the belts for breakage and replace them if needed. Calibrate the bail lever. If there's a traction motor fault, check the LCD display and service the traction motor.

Summary

SAFETY

OPERATING SAFETY

Detailed safety precautions for operating the machine, emphasizing user awareness and machine condition.

Important Safety Notes

Highlights key safety alerts, symbols, and general warnings applicable to machine operation.

SPECIFICATIONS

PRODUCT IDENTIFICATION

Identifies specific mower models based on product codes and configurations.

MOWER

Details general mower specifications including reel type, diameter, and cutting width.

TRACTION AND DIFFERENTIAL

Specifies the details of the traction drive system and differential.

WEIGHTS

Lists the weights for Gen-Set and Battery Power mower configurations.

GEN-SET POWER MODULE

Provides technical specifications for the engine and fuel system.

BATTERY POWER MODULE

Details system voltage, battery type, and charger specifications.

DECALS

Lists and illustrates various decals found on the mower for safety and identification.

CONTROLS

ICONS

Explains the meaning of various icons used on the machine's controls.

HANDLE CONTROLS

Describes the function of various controls located on the mower's handle.

LCD DISPLAY

Details the functionality, displays, and audible alerts of the mower's LCD screen.

OPERATION

DAILY INSPECTION

Outlines essential visual checks to perform before operating the mower.

INTERLOCK SYSTEM (O.P.C.)

Explains the Operator Presence Control safety system and testing procedure.

OPERATING PROCEDURES

Provides general guidelines and precautions for operating the mower safely.

STARTING;STOPPING

Step-by-step instructions for starting and stopping both Gen-Set and Battery modules.

MOWING

Details the process and techniques for mowing greens effectively and efficiently.

TRANSPORT WHEELS (OPTIONAL)

Instructions for installing and removing optional transport wheels.

GRASS CATCHER

Procedure for emptying the grass catcher.

DAILY MAINTENANCE

Daily checks and cleaning procedures for maintaining the mower.

ADJUSTMENTS (ALL UNITS)

GENERAL

General warnings and advice regarding equipment adjustments.

BRAKE

Instructions for adjusting the mower's brake system.

SPEED PADDLE STOPS

Details on adjusting and calibrating the speed paddle stops.

HANDLE

Steps for adjusting the angle and position of the handle.

TRACTION BELTS

Instructions on how to adjust the traction belts.

FRONT ROLLER WEIGHT

Guidance on adjusting the weight distribution on the front roller.

TORQUE SPECIFICATION

Chart of torque values for various fasteners used on the machine.

FIXED HEAD REEL ADJUSTMENTS

GENERAL

General precautions and safety guidelines for reel adjustments.

REEL TO BEDKNIFE

Pre-adjustment checks for reel and bedknife condition and alignment.

BEDKNIFE ADJUSTMENT

Step-by-step guide for adjusting the bedknife to achieve proper reel contact.

CUTTING HEIGHT

Procedure for setting the cutting height after bedknife adjustment.

FLOATING HEAD REEL ADJUSTMENTS

GENERAL

General precautions and safety guidelines for reel adjustments.

BEDKNIFE-TO-REEL

Pre-adjustment checks for reel and bedknife condition and alignment.

BEDKNIFE ADJUSTMENT

Step-by-step guide for adjusting the bedknife to achieve proper reel contact.

CUTTING HEIGHT

Procedure for setting the cutting height after bedknife adjustment.

REEL BEARING

Checks and adjustments related to reel bearings and their maintenance.

REEL ASSEMBLY REMOVAL

Steps for safely removing the reel assembly from the mower.

BATTERY POWER MODULE

SAFETY

Essential safety warnings related to batteries, charging, and handling.

GENERAL

General information about the sealed lead-acid batteries used in the mower.

MAINTENANCE

Tool list and pre-charging maintenance recommendations.

CLEANING BATTERIES

Procedure for safely cleaning battery terminals and surfaces.

BATTERY CHARGER

Instructions and precautions for using the battery charger correctly.

BATTERY INSTALLATION

Steps for correctly installing batteries into the battery tray.

REPLACING BATTERY PACK

Procedure for safely removing and installing battery packs.

GEN-SET POWER MODULE

ENGINE

Important information regarding engine operation, break-in, and maintenance.

ENGINE OIL

Procedures for checking and changing engine oil according to schedule.

ENGINE SPEED

How to check and adjust engine speed for proper generator output.

FUEL

Safety precautions and guidelines for handling and using fuel.

MAINTENANCE

GENERAL

General guidelines and safety precautions for equipment maintenance.

TIRES (OPTION)

Recommendations for tire inflation and maintenance.

WHEEL BEARING

Instructions for installing and maintaining wheel bearings.

BACKLAPPING AND GRINDING

Procedure for backlapping and grinding reel blades for optimal cutting.

STORAGE

Procedures for storing the mower during off-season or extended periods.

TROUBLESHOOTING

GENERAL

A chart listing common problems, their possible causes, and recommended actions.

MAINTENANCE & LUBRICATION CHARTS

GENERAL

General advice on lubrication and maintenance intervals.

MAINTENANCE CHART

Chart detailing service and lubrication intervals for various components.

LUBRICATION CHART

Visual guide illustrating lubrication points on the mower.

PARTS CATALOG

HOW TO USE THE PARTS CATALOG

Explanation of abbreviations and how to read the parts catalog.

TO ORDER PARTS

Instructions on how to place an order for parts.