manuals.online logo
Brands
  1. Home
  2. •
  3. Brands
  4. •
  5. Dennis
  6. •
  7. Lawn Mower
  8. •
  9. Dennis E-SERIES ES-860 User manual

Dennis E-SERIES ES-860 User manual

Other Dennis Lawn Mower manuals

Dennis ES-30 User manual

Dennis

Dennis ES-30 User manual

Dennis Simplex User manual

Dennis

Dennis Simplex User manual

Dennis Simplex 510 User manual

Dennis

Dennis Simplex 510 User manual

Dennis E Series User manual

Dennis

Dennis E Series User manual

Dennis PRO 34R User manual

Dennis

Dennis PRO 34R User manual

Dennis E-SERIES ES-36 User manual

Dennis

Dennis E-SERIES ES-36 User manual

Dennis FT 610 User manual

Dennis

Dennis FT 610 User manual

Dennis G680 User manual

Dennis

Dennis G680 User manual

Dennis FT User manual

Dennis

Dennis FT User manual

Dennis G-SERIES User manual

Dennis

Dennis G-SERIES User manual

Dennis Premier 30" User manual

Dennis

Dennis Premier 30" User manual

Dennis FT 430 User manual

Dennis

Dennis FT 430 User manual

Dennis G26D User manual

Dennis

Dennis G26D User manual

Dennis E Series User manual

Dennis

Dennis E Series User manual

Dennis E-SERIES ES-34R User manual

Dennis

Dennis E-SERIES ES-34R User manual

Dennis E-SERIES ES-34R User manual

Dennis

Dennis E-SERIES ES-34R User manual

Dennis E Series User manual

Dennis

Dennis E Series User manual

Dennis Razor Ultra 560 User manual

Dennis

Dennis Razor Ultra 560 User manual

Popular Lawn Mower manuals by other brands

Stiga Garden Scoop null

Stiga

Stiga Garden Scoop null

RHINO 1958 parts manual

RHINO

RHINO 1958 parts manual

Wolf Garten Compact plus 40 B instruction manual

Wolf Garten

Wolf Garten Compact plus 40 B instruction manual

Cub Cadet LTX 1045 brochure

Cub Cadet

Cub Cadet LTX 1045 brochure

GGP ITALY SPA CR/CS 434 SERIES Operator's manual

GGP ITALY SPA

GGP ITALY SPA CR/CS 434 SERIES Operator's manual

Challenge CH18V2 Original manual

Challenge

Challenge CH18V2 Original manual

TALEN TOOLS AVR HGM30 manual

TALEN TOOLS

TALEN TOOLS AVR HGM30 manual

DEWEZE ATM-725 Operation and service manual

DEWEZE

DEWEZE ATM-725 Operation and service manual

Weed Eater 180083 owner's manual

Weed Eater

Weed Eater 180083 owner's manual

Husqvarna Poulan Pro PP185A42 Operator's manual

Husqvarna

Husqvarna Poulan Pro PP185A42 Operator's manual

Better Outdoor Products Quick Series Operator's manual

Better Outdoor Products

Better Outdoor Products Quick Series Operator's manual

Cub Cadet 23HP Z-Force 60 Operator's and service manual

Cub Cadet

Cub Cadet 23HP Z-Force 60 Operator's and service manual

MTD 795, 792, 791, 790 Operator's manual

MTD

MTD 795, 792, 791, 790 Operator's manual

Toro Groundsmaster 3505-D Service manual

Toro

Toro Groundsmaster 3505-D Service manual

MTD 126-220-000 owner's guide

MTD

MTD 126-220-000 owner's guide

Toro 74806 Operator's manual

Toro

Toro 74806 Operator's manual

Stihl RMA 443 PV instruction manual

Stihl

Stihl RMA 443 PV instruction manual

Yard-Man 3700-0 Operating manual and parts list

Yard-Man

Yard-Man 3700-0 Operating manual and parts list

manuals.online logo
manuals.online logoBrands
  • About & Mission
  • Contact us
  • Privacy Policy
  • Terms and Conditions

Copyright 2025 Manuals.Online. All Rights Reserved.

SP20057_REV0.5
ES-860
ELECTRIC CASSETTE
MOWER
INSTRUCTION MANUAL
2
SP20057_REV0.5
CONTENT
1. CERTIFICATE OF CONFORMITY 3
2. SERIAL NUMBER 3
3. IMPORTANT SAFETY INSTRUCTIONS 4
4. INTRODUCTION 5
5. MACHINE DESCRIPTION 5
6. TECHNICAL DATA 6
7. CONTROLS 8
8. BASIC SCREEN CONTROLS 9
9. SCREEN MENU 10
10. WIRING 15
11. CHARGING 17
12. FREQUENTLY ASKED QUESTIONS 18
13. GENERAL ADJUSTMENTS 19
14. REMOVING THE CASSETTE UNIT 21
15. ROUTINE MAINTENANCE 22
16. GENERAL LUBRICATION 23
17. STORAGE 23
18. BATTERY CARE INFORMATION 24
19. CASSETTES AND THEIR USES 26
20. TROUBLE SHOOTING 28
21. ES-860 - PARTS BOOK 32
22. CHASSIS MAIN ASSEMBLY 33
23. ELECTRICAL 35
24. REAR ROLLER 36
25. ROLLER DRIVE 39
26. MECHANICAL PARKING BRAKE 40
27. CYLINDER DRIVE 41
28. FRONT ROLLER 42
29. HANDLE BARS 43
30. HANDLE CONSOLE 44
31. GRASS BOX CRADLE 46
32. GRASS BOX 47
33. GUARDS 48
34. DECALS 49
35. CUTTER CASSETTE 50
36. VERTICUTTER CASSETTE 52
37. SCARIFIER CASSETTE 54
38. BRUSH CASSETTE 56
39. SORREL ROLLER CASSETTE 58
40. SPRING TINE CASSETTE 60
3
SP20057_REV0.5
1. CERTIFICATE OF CONFORMITY
DENNIS ES-860 Cassette Machine powered by 48V AC motors
Manufacturer:- Howardson Ltd, Howardson Works, Kirk Langley, Derby, DE6 4NJ. UK
Owner of Technical Document:- Mr I.D. Howard, Howardson Ltd, Howardson Works, Kirk Langley, Derby, DE6 4NJ. UK
I the undersigned declare that these machines:-
2. SERIAL NUMBER
MAKE A NOTE OF THE SERIAL NUMBER OF YOUR MACHINE AND ALWAYS
QUOTE IT IN ANY COMMUNICATION WITH PERSONNEL AT DENNIS.
Model Cutting Width Power Measured Sound
Power Level
Guaranteed Sound
Power Level Serial Number
ES-860 34” (860mm) 48V AC motor (x2) 88 dB (Lwa) 91 dB (Lwa) See product ID
Tested at:- Howardson Works test site September 2020
Complies with the applicable requirements of:-
- Machine Directive 2006/42/EC
- Noise Directive 2000/14/ec (Annex VI Procedure 1)
Managing Director
Ian Howard
NOTE:-
MACHINE SERIAL NUMBER
NOTICE OF COPYRIGHTS AND PROPERTY RIGHTS
● Keepthisoperatingmanualcondential.
●Only make this operating manual accessible to authorized persons.
●Only pass this operating manual to third parties after obtaining written permission from DENNIS.
●All documents are protected under the Copyright Act. Passing on and reproducing documents, including excerpts, and exploiting
and sharing the contents of documents is prohibited unless expressly approved in writing.
●Violations are punishable and subject to compensation of damages. DENNIS reserves the right to exercise any and all industrial
property rights.
CHASSIS SERIAL NUMBER
BATTERY SERIAL NUMBER
MOTOR SERIAL NUMBERS
ROLLER MOTOR (with Gearbox) CYLINDER MOTOR
4
SP20057_REV0.5
NEVER
• Carry out adjustments whilst the machine is running.
• Allow any unauthorised person to handle machines, in any way, at any time.
• Open or attempt any work inside the electrical box. Opening the box will void the warranty.
• Replace any electrical components or motors with non OEM parts.
• Attempt to charge the machine from any non OEM charger.
• Operate mower if electrical wires are damaged or bare cable is exposed.
ALWAYS
• Read the operating instructions carefully and understand the controls before commencing work.
• Usesafetyguardsandmakesuretheyarecorrectlyttedinposition.Theyaresuppliedforyourprotection.
• Before starting work always visually check machine for damage or wear to parts.
• Look behind before starting to reverse and watch out for children or pedestrians.
• Respect powered machines. Always keep hands and feet clear of moving parts and remember that
brushesandrollerscancontinuetorotateevenafterthepowerunitisswitchedo󰀨.
• Switcho󰀨thepoweranddisconnectthebatterybeforeservicingormakingrepairs.
• Never lift or carry a machine whilst any parts are moving.
CAUTION:- READ THE INSTRUCTIONS. We want you to obtain the best performance from this
  machine.Ifyouhaveanydi󰀩cultyincarryingoutthefollowinginstructionsplease
contact your local DENNIS dealer.
48V
3. IMPORTANT SAFETY INSTRUCTIONS
TRAINING
●Be familiar with the controls and the proper use of the equipment.
●Never allow children or people unfamiliar with these instructions to use the mower. Local regulations or
insurance may restrict the age of the operator.
●Never mow while people, especially children, or pets are near by.
●Keep in mind that the operator or user is responsible for accidents or hazards occurring to the other people or
their property.
PREPARATION
●Thoroughly inspect where the equipment is to be used and remove all stones, sticks, wire, bones and other
foreign objects.
● Beforeusingthemachinealwaysinspectthesafetydevices,includingtheemergencycut-o󰀨switch,aswellas
checking the blades for excessive wear or damage. Replace if necessary.
●While mowing always wear substantial footwear and long trousers. Do not operate the mower barefoot or in
open sandals.
● Indry,dustyorwindyconditionsitmaybenecessarytoweareyeprotectiontoprotectyoureyesfromying
debris.
OPERATION
● Mowonlyindaylightorgoodarticiallight.
●Avoid operating the machine in wet grass where feasible.
●Always be sure of your footing on slopes.
●Walk. Never run.
●Walk across the face of slopes, never up and down.
●Exercise extreme care on slopes, especially when changing direction.
●Do not mow steep slopes.
●Use extreme caution when reversing or pulling the machine towards you.
●Stop the blades and tilt the mower back on the rear roller when crossing surfaces other than grass or when
transporting between areas to be mown.
●Never operate the mower with defective guards or shields or without safety devices, for example without the
deectorplateorgrassboxinplace.
●Do not put hands or feet near the under rotating parts. Keep clear of the discharge opening at all times.
●Never pick up or carry the mower while the motors are running.
5
SP20057_REV0.5
4. INTRODUCTION
This operating manual is an essential tool to ensure the proper and safe operation of the ES-860 Electric Cassette Mower. This
usermanualcontainsimportantinformationregardingthesafe,properande󰀩cientoperationoftheES-860.Adherencetothis
manual will help to avoid risk, lower repair costs and reduce downtimes while simultaneously increasing the service life of the
ES-860 itself. The operating manual must always be available, and every person tasked with working on or with the ES-860
must read and follow the instructions.
Inthecaseofanydi󰀩culty,oriffurtherinformationoradviceisrequired,ourServiceDepartmentisalwaysatyourcall.Inthe
interests of speed and accuracy of information please quote the serial numbers of the machine when making enquiries. For
the machine, this is to be found on a plate attached to the side of the chassis. We suggest you write the numbers on the front
page of this book.
5. MACHINE DESCRIPTION
Manufacturedwith34”(86cm)cuttingwidththismachineisrunbyapairof48Vhighe󰀩ciencybrushlesspermanentmagnet
AC motors powered from an 111 Ah lithium ion battery.
The rear roller and cutter are controlled independently via belt drives operated from the display screen on the upper handle bar.
Amechanicalparkingbrakeisttedforaddedsafetywhenworkingaroundunevenground,whenappliedthisdisengagedrive
to both motors for added safety.
In the design of the machine, special attention has been given to the importance of easy service and maintenance with the
construction based on a sectional assembly system. These are the Electrical Drive system, the Rear Roller Unit and the Front
Roller Unit, each of which can be readily removed individually from the main Frame Chassis Unit.
The interchangeable cassette system allows a variety of cassettes to be used for varying applications. Dennis 860 cassette are
interchangeable between the ES-860 & G-860 (petrol machine).
6
SP20057_REV0.5
ES-860
DIMENSIONS
A- WIDTH (mm) 1110
B- LENGTH with Grass Box (mm) 1860
C- LENGTH without Grass Box (mm) 1340
D- HEIGHT (mm) 1100
WEIGHT with Cutting Cassette (Kg) 235
WEIGHT without Cassette (Kg) 195
Cutting Width 860mm / 34”
DRIVE SYSTEM
Roller Motor (W) 630
Roller Drive System Timing Belt
Cylinder Motor (W) 1200
Cylinder Drive System Multi V belt
ELECTRICAL SYSTEM
Battery Type Lithium Ion
System Voltage 48
Battery Capacity (Ah) 111
Self Discharge @ 25 °C < 2% per month
C
B
D
A
6. TECHNICAL DATA
7
SP20057_REV0.5
NUMBER PART NUMBER PART
1 Electrical Box 7 Belt Guards
2 Battery Cover 8 Mechanical Hand Brake
3 Roller Motor 9 Cutting Height Adjuster
4 Cylinder Motor 10 Cassette Retaining Bolt
5 Cassette 11 Grass Box
6 Bottom Blade Adjustment Knob 12 Handle Bar Adjusters
1
2
3
4
5
6
7
11
10
12
9
8
12
1
11
2
7
9
1413 1516 17
13
15
14 16
17
NUMBER PART NUMBER PART
13 Key Switch 16 Deadman’s Handle
14 Display Screen 17 Start Button
15 Emergency Stop
Or
8
SP20057_REV0.5
7. CONTROLS
FOR THE LOCATION OF CONTROLS AND COMPONENTS REF “MACHINE DESCRIPTION” & ‘TECHNICAL DATA’
PAGES. BE FAMILIAR WITH THE CONTROLS AND THE PROPER USE OF THE EQUIPMENT BEFORE STARTING.
KEY SWITCH & START BUTTON (ITEM 13 & 17)
This switch cuts power to the electrical components and can be used to do so at any time during the operation of the machine.
See basic operations page for more information
DEADMANS CONTROLS (ITEM 16)
This is an operator presence control. This must be depressed before the drive and cylinder motors will engage. Releasing the
handle during operation will cut power to both motors.
MECHANICAL PARKING BRAKE (ITEM 8)
This applies a mechanical brake to the rear roller. It is only to be engaged when the machine is stationary, it is NOT to stop the
machine. Push the lever forward to engage and pull back behind brake plate to disengage. The display will automatically display
PARK on the gear selection icon when the brake is engaged. The brake must be disengaged before the gear selection can be
changed by the operator.
THE MECHANICAL PARKING BRAKE MUST BE DISENGAGED TO ALLOW
THE MOWER DISPLAY TO BE SET TO DRIVE OR REVERSE.
NOTE:-
PUSHING THE MOWER WHEN NOT MOTOR DRIVEN SHOULD ALWAYS BE
DONE IN NEUTRAL TO AVOID DAMAGING THE INTERNAL MOTOR BRAKE.
NOTE:-
CONTROL SCREEN (ITEM 14)
Mower operations can be undertaken from the HOME screen. See (8) BASIC SCREEN OPERATIONS on the next page outline
mower controls from this screen. From the HOME screen, Drive start/stop, Drive speed, Cylinder start/stop, Reverse & Turning
Speed can be operated.
Other setting changes can be controlled through the MENU settings. These include Clip Rate, RPM, Password Protect, Speed
Defaults & many others. See (9) SCREEN MENUS.
To navigate back to the HOME screen from any other menu screen press the HOME screen icon (see below).
HOME SCREEN
(Return to HOME screen from menus)
9
SP20057_REV0.5
8. BASIC SCREEN CONTROLS
SP19027_REV2 - 11/02/2021
2.0KM/H
2.0KM/H
P
D
R
N
D
R
P
N
D
R
N
P
R
D
P
N
Cylinder START / STOP
When in DRIVE only
Roller START / STOP
When in DRIVE or REVERSE
Turning Speed
Turn ON / OFF
DRIVE - To operate mower
NEUTRAL - Free rolling
PARK - Mechanical parking brake is on
REVERSE - Roller direcon backwards
D
R
N
P
4.0
KM/H
2.0KM/H
5.5 KM
135 MIN
DENNIS NO.1
09:33
23 SEPT 2020
MENU
Increase / Decrease
Forward Speed
(0.1 increments)
Enter MENU BATTERY LEVEL
E-SERIES BASIC OPERATING
TIME - DATE
TRIP DISTANCE
TRIP TIME
SELECTED CLIP
RATE or RPM
RPM
KEY START
A) Release E-Stop
B)

C)
D)‘CLICK’

E)

ON
OFF
C) / D)A) B)
START BUTTON
‘CLICK’
3
sec
DEADMAN’S HANDLE MUST ALWAYS BE HELD TO OPERATE ROLLER
AND CYLINDER DRIVE.
NOTE:-
10
SP20057_REV0.5
9. SCREEN MENU
D
R
N
P
4.0
KM/H
2.0KM/H
5.5 KM
135 MIN
DENNIS NO.1
09:33
23 SEPT 2020
MENU
?ES-860
Version - SP27002_REV2.21
Serial No. - ES8600001
DENNIS NO.1 FACTORY
SETTINGS
ES-860
Serial No. - ES8600001
DENNIS NO.1
RPM
ES-860
Serial No. - ES8600001
DENNIS NO.1
D _ _
!
nd
22
JAN
UP
2020
Last Completed
24/10/2019
Last Completed
24/10/2019
Last Completed
24/10/2019
STANDARD ‘D150’
100 c/m - FACTORY SETTING
‘RATE B’
XXX c/m - ‘USER DEFINED DESCRIPTION’
‘RATE C’
XXX c/m - ‘USER DEFINED DESCRIPTION’
RBACK LAPPING IN
MONTHLY CHECKS
BATTERY INFO
DEFAULT SPEEDS
TRIP LOGS
EDIT CLIP RATES
HOME SCREEN MAIN MENU
EDIT MACHINE NAME
EDIT TIME / DATE
HOME SCREEN
LOCK / UNLOCK EDITING
MAIN MENU
EDIT PASSWORD CODE
DAILY CHECKS
MONTHLY CHECKS
HOME SCREEN
YEARLY CHECKS
MAIN MENU
SELECT DEFAULT
SELECT USER DEFINED
SELECT USER DEFINED
HOME SCREEN
HOME
SCREEN MAIN MENU
PAGE DOWN
HOME SCREEN
MAIN MENU
OPERATIONS SCREEN
MACHINE SETTINGS
3 MORE USER DEFINED
SELECTION OPTIONS
MAINTENANCE SCREEN
RATE SELECTION PAGE C
PAGE C
PAGE B
PAGE B PAGE A
PAGE A
DOWNLOAD LOG
(TO USB)
SCREEN BRIGHTNESS
ES-860
Serial No. - ES8600001
DENNIS NO.1
CYLINDER
FACTORY SETTINGS
INFORMATION SCREEN PAGE D
MANUAL INFORMATION
FREQUENTLY ASKED QUESTIONS
CONTACT INFORMATION
HOME SCREEN MAIN MENU
ES-860
ELECTRIC CASSETTE MOWER
EDIT RPM RATES
SORREL ROLLER
CYLINDER
BRUSH
CUTTER
HOME SCREEN MAIN MENU
CASSETTE SELECTION PAGE D
SORREL ROLLER CYLINDER
CUTTER
BRUSH
SP19024_REV2 - 11/02/2021