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Jacobsen Greens King IV - Service Manual

Jacobsen Greens King IV
108 pages
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Parts & Maintenance
Manual
When Performance Matters.
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 should read the entire manual before attempting to set up,
operate, adjust, or service the machine.
19
17
18
13
6
5
9
15
16
7
8
10
4
3
11
1 - INCLUDES ITEMS 3 - 16
GB
Greens King
IV with ROPS
62305 – 16 HP Briggs & Stratton
®
Vanguard
Engine
Serial Number 1686 and Up
Greens King
IV Plus with ROPS
62306 – 18 HP Briggs & Stratton
®
Vanguard
Engine
Serial Number 2013 and Up
4279831 Rev A

Table of Contents

Other manuals for Jacobsen Greens King IV

Questions and Answers

  • J
    Jessica EllisAug 18, 2025
    How to troubleshoot starting issues in a Jacobsen Lawn Mower?
    • D
      David LarsonAug 18, 2025
      If your Jacobsen Lawn Mower engine won't start, begin by verifying the interlock system and start-up procedure. Possible causes include the parking brake being disengaged, the traction lever not being in Neutral, or the reel lever(s) being On. Also, inspect the battery's condition and connections, ensure the fuel tank isn't empty or contains dirty fuel, and confirm the fuel shutoff valve is open. Lastly, check and replace the fuse if it's blown.
  • C
    Casey BakerAug 21, 2025
    Why my Jacobsen Greens King IV Lawn Mower engine will not start?
    • L
      Lisa WhiteAug 21, 2025
      If the Jacobsen Lawn Mower engine won't start, several factors could be at play. First, verify that the parking brake is engaged, the traction lever is in neutral, and the reel levers are off. If these are not properly set, the interlock system might be preventing the engine from starting. Additionally, inspect the battery and its connections to ensure they are in good condition and sufficiently charged. Also, ensure the fuel tank has fresh fuel, the fuel filter is clean, and the fuel shut-off valve is open. Lastly, check the fuse and replace it if it's blown.
  • K
    Kenneth SmithAug 23, 2025
    What to do if gauges/indicator not operating in Jacobsen Greens King IV?
    • M
      Melissa GeorgeAug 23, 2025
      If the gauges or indicators on your Jacobsen Lawn Mower aren't operating, replace the fuse and check the bulb. Also, check the electrical connections for loose wiring.
  • R
    rebecca05Aug 26, 2025
    Why is my Jacobsen Greens King IV Lawn Mower engine hard to start or runs poorly?
    • D
      Dawn LeonardAug 26, 2025
      If the Jacobsen Lawn Mower engine is hard to start or runs poorly, begin by filling the tank with fresh fuel, changing the fuel filter, and bleeding the fuel lines. Next, inspect and replace the air filter if it's dirty.
  • G
    gibsonsamuelAug 27, 2025
    Why is my Jacobsen Greens King IV engine hard to start or running poorly?
    • J
      Jerry MontoyaAug 27, 2025
      If your Jacobsen Lawn Mower engine is hard to start or runs poorly, start by filling the tank with fresh fuel, changing the fuel filter, and bleeding the fuel lines. A low fuel level or dirty fuel/fuel filter could be the cause. Also, inspect and replace the air filter if it's dirty.
  • T
    Terri ArmstrongAug 30, 2025
    What to do if my Jacobsen Greens King IV Lawn Mower engine stops?
    • J
      Joseph SaundersAug 30, 2025
      If your Jacobsen Lawn Mower stops, add fresh fuel and bleed the fuel lines if the fuel tank is empty. Also, make sure to engage the parking brake, set the reel levers to Off, and set the traction lever to Neutral before leaving the operator’s seat.
  • S
    saramelendezSep 1, 2025
    What to do if my Jacobsen Greens King IV Lawn Mower does not react to the traction pedal?
    • G
      Gary WeeksSep 1, 2025
      If your Jacobsen Lawn Mower isn't reacting to the traction pedal, first disengage the parking brake. If that doesn't work, place the traction lever in the desired speed or direction. Also, check the hydraulic oil reservoir level and fill it if needed.
  • K
    Kelsey HarrellSep 3, 2025
    Why is my Jacobsen Greens King IV Lawn Mower engine overheating?
    • A
      Ashley GarciaSep 4, 2025
      If your Jacobsen Lawn Mower engine is overheating, clean the cooling air intake to address potential air intake restrictions. Additionally, reduce forward speed to prevent engine overload.
  • M
    Melissa SanfordSep 6, 2025
    What causes a Jacobsen Greens King IV battery not holding charge?
    • M
      mark34Sep 6, 2025
      If your Jacobsen Lawn Mower battery isn't holding a charge, inspect and clean the terminals if they're loose or corroded. If the electrolyte level is low, fill it to the correct level.
  • E
    Eric RogersSep 8, 2025
    Why do the reels cut unevenly on my Jacobsen Greens King IV Lawn Mower?
    • T
      Thomas KimSep 8, 2025
      If the reels on your Jacobsen Lawn Mower cut unevenly, inspect the bedknife-to-reel adjustment. Also, check the engine speed and ensure it's not too low. Make sure the Reel Control lever isn't set in Reverse, and run the engine at full throttle. Finally, check the hydraulic oil reservoir level and fill if needed.

Summary

Safety

Operating Safety

Essential guidelines for safe operation and use of the equipment.

Important Safety Notes

Critical safety alerts, warnings, and precautions for equipment use and maintenance.

Specifications

Engine

Technical specifications and details about the mower's engine make, model, and performance.

Mower

General specifications for the mower, including tires, brakes, speed, and hydraulic system.

Adjustments

Bedknife Adjustment

Detailed steps for adjusting the gap between the bedknife and reel blades for optimal cutting.

Cutting Height

Procedure for setting and adjusting the mower's cutting height for desired grass length.

Torque Specification

Detailed torque values for standard American and metric fasteners.

Maintenance

Engine Oil

Instructions for checking and changing engine oil, including recommended types and intervals.

Fuel System

Guidelines for safe fuel handling, storage, and recommended fuel types for the mower.

Hydraulic Fluid

Procedures for checking, changing, and maintaining the mower's hydraulic fluid.

Electrical System

Precautions and checks for maintaining the mower's electrical system and components.

Troubleshooting

General

A troubleshooting chart for common problems encountered during mower start-up and operation.

Parts Catalog

How to Use the Parts Catalog

Guidance on interpreting abbreviations, symbols, and ordering procedures for parts.

To Order Parts

Step-by-step instructions for ordering replacement parts for the mower.

Hydraulic Schematic

Hydraulic Schematic

Diagram illustrating the mower's hydraulic system flow and component connections.

Electrical Schematic

Electrical Schematic

Diagram illustrating the mower's electrical system wiring and component interconnections.

Jacobsen Greens King IV Specifications

General IconGeneral
BrandJacobsen
ModelGreens King IV
CategoryLawn Mower
LanguageEnglish

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