Allett C 34 User manual

AM81687-A
Original Instructions –English
1
C34 EVOLUTION
OPERATOR MANUAL
(AM81687-A ISSUE 14/1/20)
English version
Allett Limited, Regal House, Airfield Industrial Estate, Hixon, Stafford, ST18 0PF, United Kingdom
Tel: [phone]
[email protected]
www.allett.co.uk
For Allett spare parts
Tel: [phone]

AM81687-A
Original Instructions –English
2
READ THIS MANUAL BEFORE USING AN ALLETT C34 EVOLUTION BATTERY POWERED
CYLINDER MOWER.
YOUR SAFETY IS INVOLVED
IT IS ESSENTIAL THAT OPERATORS STUDY THIS DOCUMENT FOR THEIR OWN SAFETY.

AM81687-A
Original Instructions –English
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Contents
Introduction
Model type and serial number
Safety notes
Technical data
Operating controls
Batteries and charging
Checking battery capacity
Battery features
Charging the battery
Inserting the battery into the mower
Removing the battery from the mower
Battery connection
Usage time
Battery and charger recommendations
Starting and stopping
Starting
Stopping & Disabling device
Cylinder controls
Starting & stopping the cylinder
Selecting cylinder modes
Land drive controls
Starting & forwards speed control
Selecting slow mode
Applying the park brake
Adjustments & Maintenance
Height of cut
Use of height bar
Changing a cartridge
Backlapping (option)
Grease points
Adjusting the bottom blade –setting “on-cut”
Bottom blade grinding angles
Inspection of safety critical components
Delivery plate fins
Vibration reduction
Assembly
Handle bar height adjustment
Grassbox
Cleaning and storage
Protective circuit and fuses
Fault finding and flash codes
Disposal
Declaration of Conformity
Guarantee

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Original Instructions –English
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1.0 Introduction
The C34 Evolution is designed predominantly as a lawn mower. However, the base unit has the ability
to accept a range of interchangeable cartridges to cover a number of professional turf management
tasks.
The base unit is powered by two 72-82V 1000W brushless DC motors. One motor powers the land roll
and a second powers the interchangeable cartridge via a toothed timing belt drive.
The C34 mowers are designed for the management of high quality turf. Use in any way other than that
stated is considered contrary to the intended use. Compliance and strict adherence to the conditions
of operation, service and repair as specified in this manual also constitute essential elements of the
intended use.
The way in which the C34 mowers are operated and maintained will have a profound effect on their
performance and reliability.
A C34 mower should be operated, serviced and repaired only by persons who are familiar with its
particular characteristics and who are familiar with the relevant safety procedures.
The safety precautions outlined in this manual and all other generally recognised regulations on safety
must be observed at all times.
Any modifications carried out to a C34 mower will relieve Allett Limited of liability for any resulting
damage or injury.
This manual is based on information available at the time of publication.
Allett Limited reserves the right to amend product specifications without prior notification.
1.1 Model type and serial number
The model can be found in two places:
1. On the top cover of the mower.
2. On the serial number plate located on the right side of the mower chassis.
The serial number can be found on the serial plate.
Please enter your information below
Model:
Serial Number:
163

AM81687-A
Original Instructions –English
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Safety Notes
Important! Warning! Read these instructions carefully, be familiar with the controls and the proper
use of the lawnmower. Keep these instructions for future reference.
Explanation of symbols on the lawnmower:
General hazard safety alert
Read instruction manual
Beware of thrown or flying objects
Keep bystanders at a safe distance from machine
Switch off and remove isolation key before adjusting, cleaning and before leaving the
lawnmower unattended for any period.
Sharp blade(s). Beware of severing toes or fingers.
Wait until all machine components have completely stopped before touching them. The
blades continue to rotate after the machine is switched off, a rotating blade can cause
injury.
Never allow children to use the lawnmower, children should be supervised to ensure they
do not play with the machine. Always remove the isolation key, even when in storage.
Bottom blade to cylinder adjustment
Flying debris, keep bystanders away. Warning, sharp blades, do not touch rotating blades. The blades
continue to rotate after the mower is switched off
Cylinder mode switch: backlap, fast cylinder speed, slow cylinder speed &
reverse drive

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Original Instructions –English
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Never allow people unfamiliar with these instructions to use the lawnmower.
Local regulations may restrict the age of the operator.
This machine is not intended for use by children or by persons with reduced physical, sensory or
mental capabilities, or lack of experience and knowledge unless they have been given supervision or
instruction concerning the use of the machine by a person responsible for their safety.
Never mow while people, especially children or pets, are nearby.
The operator or user is responsible for accidents or hazards occurring to other people or their
property.
Do not operate the lawnmower when barefoot or wearing open sandals, always wear substantial
footwear and long trousers.
Thoroughly inspect the area where the lawnmower is to be used and remove all stones, sticks, wires,
bones and other foreign objects.
Before using, always visually inspect to see that the blades, blade bolts and cutter assembly are not
worn or damaged.
Replace worn or damaged blades and bolts in sets to preserve balance.
Mow only in daylight or in good artificial light.
Avoid operating the lawnmower in wet grass, where feasible.
Walk, never run.
Mowing on banks can be dangerous:
–Mow across the face of slopes –never up and down.
–Always be sure of your footing on slopes or wet grass.
–Exercise extreme caution when changing direction on slopes.
–Do not mow excessively steep slopes.
–Use extreme caution when stepping back or pulling the lawnmower towards you. Never mow by
pulling the mower towards you.
Stop the blades if the lawnmower has to be tilted for transportation when crossing surfaces other
than grass and when transporting the lawnmower to and from the area to be mowed.
Do not tilt the machine when starting or switching on the motor, except if the machine has to be
tilted for starting in long grass. In this case, do not tilt it more than absolutely necessary and tilt only
Land drive speed control
Key / Disabling device
ON “1”
OFF “0”
Height of cut decal
Park brake
Guard missing –
entanglement hazard
Electrical hazard
Cutter & Roller control box
Cylinder operation
LED
Battery loading position

AM81687-A
Original Instructions –English
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the part which is away from the operator. Always ensure that both hands are in the operating
position before returning the machine to the ground.
Never operate the appliance with defective guards or shields, or without safety device, for example
deflectors and/or grass catchers in place.
Switch on the lawnmower according to instructions and with feet well away from the blades.
Disengage all blade and drive clutches before starting the motor.
Keep clear of discharge opening at all times.
Always stand clear of the discharge zone when operating the machine.
Never pick up or carry the lawnmower while the motor is running.
Do not put hands or feet near, or under, rotating parts while the lawnmower is being operated.
Be careful during adjustment of the lawnmower to prevent entrapment of the feet and hands
between moving blades and fixed parts of the lawnmower.
Always wear gloves if carry out maintenance near the sharp blades
Remove the isolation key and batteries:
–whenever you leave the machine
–before clearing a blockage
–before checking, cleaning or working on the lawnmower
–after striking a foreign object. Inspect the lawnmower for damage and make repairs as necessary
–if the lawnmower starts to vibrate abnormally (check immediately).
–when in storage or being folded for storage
–Before transporting the machine
Keep all nuts, bolts and screws tight to be sure that the lawnmower is in safe working condition.
Check the grass catcher frequently for wear or deterioration.
Replace worn or damaged parts for safety.
Ensure replacement parts fitted are approved
Technical Data
Designation:
C34 Evolution
Cylinder lawnmower
Machine type
C34E/1
Rated power
2 x 1000W
Voltage (Max V)
82V Li-ion
Blade width (cm)
86
Height of cut (mm)
10-50
Self-propelled
✓
Weight (kg)
163kg
Protection Class
II (Double insulated)

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Original Instructions –English
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Operating controls
1) Cylinder engagement switch
2) Cylinder bale bar
3) Roller slow mode switch
4) Roller drive bale bar
5) Roller drive speed lever
6) Park brake
7) Grass box
8) Grass box cradle
9) Height of cut adjuster
10) Cartridge securing screw
11) Kick stand
12) Isolation key
13) Cylinder mode switch
②
③
①
④
⑤
⑥
⑧
⑨
⑩
⑪
⑫
⑦
⑬

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Original Instructions –English
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Batteries & Charging
Checking battery capacity
Press the battery capacity indicator button. The lights will illuminate according to the battery’s
capacity level. See table below:
Lights
Capacity
3 Green Lights
The battery is at more than 75% capacity
2 Green Lights
The battery is between 35-75% capacity
1 Green Lights
The battery is between than 20-35% capacity
1 Green flashing light
The battery is between 10-20% capacity
The lights go out
The battery requires charging immediately
⑯
⑭
⑮
14) Battery/battery gauge
15) Cylinder to bottom blade
adjusters
16) Cartridge drive coupling
<35% 35-75%>75%

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Original Instructions –English
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Battery features
The RED fault LED will illuminate and flash if the battery is over or under temperature. The battery
will not work until the temperature returns to normal. Move the battery pack to a position where
the air temperature is above 5°C or below 52°C.
To activate the Bluetooth press the battery capacity indicator button. The Bluetooth LED will flash
when the Bluetooth function is activated. When the Bluetooth function is connected to the phone
APP the Bluetooth LED will remain on. For more details on how to download the phone APP see the
battery manual.
Charging the battery
NOTE: The battery is not shipped fully charged. It is recommended to fully charge before use to
ensure that maximum run time can be achieved. This lithium-ion battery will not develop a memory
and may be charged at any time. In normal conditions a 6Ah battery can be fully charged in
90minutes. To achieve the 90minute charge the battery charger contains a cooling fan which can be
heard when the charger is in operation. To charge a battery proceed as follows:
1. Plug the charger into a Mains AC power outlet.
2. Insert 1 or 2 batteries into the charger.
3. When the battery is fully charged, the green LED will illuminate, unplug the charger.
When charging 2 battery packs the 2 batteries are charged separately. The charger will charge one
battery first. After one battery is fully charged, it will charge the other battery.
Fault LED
Bluetooth function LED

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Original Instructions –English
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The charger used is a diagnostic charger. The Charger LED Lights will illuminate in a specific order to
communicate the current battery status. They are as follows:
LED Status
Description
Blinking Green
Charging
Solid Green
Fully charged
Solid red
Over temperature
Blinking red
Charging fault
False defect note:
When the battery is inserted into the charger, and the status LED flashes RED, remove the battery
from the charger for 1 minute, then reinsert. If the status LED flashes green then the battery pack is
good. If the status LED is still blinking RED, remove the battery pack and unplug the charger. Wait 1
minute and plug the charger back in and reinstall the battery pack. If the status LED blinks GREEN
then the battery pack is good. If the status LED is still blinking RED then the battery pack is defective
and needs to be replaced.
For further information please refer to the charger manual.
For best results, the battery should be charged in a location with a temperature between 7°C (43°F)
and 40°C (104°F).
When using multiple chargers in one location budget that each charger needs a supply of 230V AC at
2.5A input.
Inserting the battery into the mower
1. Lift and hold up the battery compartment lid.
2. Place the battery in the dock. Align ribs on battery with grooves in the battery compartment.
Make sure the battery release button CLICKS in place and that battery is fully seated and secured in
the dock and the lid is closed before beginning operation.
Click
①
②

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Original Instructions –English
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Removing the battery from the mower
1. Press and hold the battery release button
2. Remove the battery from the dock
Battery connection
IMPORTANT WARNING
The mower can operate on a single battery if necessary. One battery may be replaced with a fully
charged unit if required, all 4 batteries do not need to be replenished at the same time.
For the mower to operate correctly and to achieve the best performance:
•Always make sure there is a battery located in the end position (No. 4) on the operator’s
right-hand side.
•Try to make sure the battery in the end position (No. 4) on the operator’s right has an equal
or higher charge than the other batteries.
•When changing the batteries always swap the battery in the end position (No. 4) on the
operators right first.
②
①
✓
✓


!

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Original Instructions –English
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The batteries are protected from cross charging by a 7.5A fast blow fuse, this will prevent any
damage or an unsafe condition occurring should the advice above not be followed. If this fuse fails it
must be replaced with a fuse of a similar rating. Please use Allett part reference AM81723 as a
replacement.
Usage time
The area of cut and therefore battery duration is dependent on your turf conditions or the operation
being carried out. Mowing at a low height in wet, dense grass will reduce the run time. To increase
battery life, it is recommended to:
1. Only take ⅓ of the plant height off in a single cut, this will mean mowing frequently at least once
per week.
2. Keep the blades sharp and regularly serviced. Blunt or damaged blades will decrease battery life.
Following the recommendations above in dry conditions your mower should cover an area of
approximately one football pitch (500-700m2) or run for 2 hours on a new, fully charged battery.
Battery & charger recommendations
Remove or turn off the key before inserting the battery into the lawnmower.
Do not allow the battery pack or charger to overheat. If they are warm, allow them to cool down.
Recharge only at room temperature.
Do not place the battery pack in; freezing conditions, direct sun light or in a warm environment.
Keep at normal room temperature, for example do not place near a radiator.
If the battery is not charged for a long time; charge the battery for 2 hours every 2 months.
Do not recharge non-rechargeable batteries with the charger.
The battery pack cells may develop a small leak under extreme usage or temperature conditions. If
the outer seal is broken and the leakage gets on your skin:
•Use soap and water to wash immediately.
•Neutralise with lemon juice, vinegar, or other mild acid.
•If leakage gets in your eyes, flush immediately with clean water for at least 15 minutes and
seek medical attention.
The charger is for indoor use only.
Protect the batteries against moisture and water.
If while using the battery it emits an unusual smell, feels hot, changes colour, changes shape or
appears abnormal in any other way immediately discontinue use. If the battery cracks or breaks,
with or without leaks, do not recharge it and do not use. Dispose of it (See “Disposal”section) and
replace with a new battery pack. Do not attempt to repair.
Use only Allett battery Ref: AM81688 - 72V Nominal 6Ah 432Wh 82V MAX (CR 82V430)
Use only Allett charger Ref: AM81704 –Twin port mains battery charger 2900486 (82C2)
Please refer to the Battery and Charger manual for further information.

AM81687-A
Original Instructions –English
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Starting & Stopping
Starting
Turn the key switch / disabling device clockwise to position “1”. The red LED will illuminate. An
audible click can be heard this is the contactor powering up the high voltage circuit.
Stopping & Disabling device
The key switch cuts power to the motor controllers. When the key is in “0” position or removed the
cylinder and land drive will not operate.
Battery-operated products do not have to be plugged into an electrical outlet; therefore, they are
always in operating condition. Be aware of possible hazards when using the lawnmower, always
remove the key switch / disabling device when leaving the lawnmower unattended and never let
children play with the machine. Following this rule will reduce the risk of serious injuries.

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Original Instructions –English
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Cylinder controls
Starting & Stopping the cylinder
Starting:
1) Press and hold the safety button
2) Move the cylinder bale bar towards the handle. The cylinder will start to rotate
Stopping:
Release the cylinder bale bar and the cylinder will stop.
Selecting cylinder modes
The 4 position rotary switch on the handle bar allows the operator to select 4 cylinder operational
modes. These modes are designed to improve cylinder mowing and turf maintenance tasks.
②
①
Cylinder
slow speed
Cylinder
fast speed
Cylinder
Reverse
Back lap

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Original Instructions –English
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The following table lists the cylinder operational modes that can be selected:
Cylinder mode
Use
Back lap
Built in back lapping function if
optional safety back lapping
switch is purchased
Cylinder fast speed
Use for wet, dense or heavy
grass
Cylinder slow speed
Use for light dry grass
Cylinder reverse
Use with specially designed
cartridge options for effective
scarifying
Land drive controls
Starting & forward speed control
Starting:
1) Select the forward travel speed using the land drive speed lever
2) Move the land drive bale bar towards the handle. The lawn mower will start to move
forwards
Stopping:
Release the land drive bale bar and the lawn mower will stop.
①
②
>>>>>

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Original Instructions –English
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Selecting slow mode
For easy and controlled turns press the handle bar mounted SLOW MODE SWITCH. The green LED
will illuminate to notify you that Slow mode has been engaged. This slows the mowers forward
speed allowing you to make a controlled turn. To return to normal forward speed for mowing press
the slow mode switch again.
Applying the park brake
To apply the park brake pull the RED lever towards you and secure in place with the screw lock.
Adjustments & Maintenance
STOP - Remove the key and the batteries before making any adjustments and wear gloves if
you are working near the blades
Note: To ensure long and reliable service, carry out the following maintenance regularly. Regularly
check for obvious defects such as a loose, dislodged or damaged blade, loose fixings, and worn or
damaged components. Check that covers and guards are undamaged and correctly fitted. Carry out
necessary maintenance or repairs before using. Clean the exterior of the machine thoroughly
using a soft brush and cloth. Do not use water, solvents or polishes. Remove all debris, especially
from around the motor. If the mower should happen to fail despite the care taken in manufacture
and testing, repair should be carried out by an Approved service agent.
>>
①
②

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Original Instructions –English
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Height of cut adjustment
The height of cut is set by altering the position of the front roller. Two adjusters are provided to level
the front roller.
Turn the height of cut adjustment knob clockwise to lower the height of cut
Turn the height of cut adjustment knob anti-clockwise to raise the height of cut
Use of the height bar
It is recommended to use a height bar to accurately measure the height of cut on each side of the
mower. To do this proceed as follows:
WARNING - blades are sharp, always wear gloves
For a cutting cylinder cartridge:
1) Set “on cut” first, refer to section below
2) Adjust and lock the bolt on the height setting bar to your desired height of cut
4) Tilt the mower back and wedge securely
5) With the height setting bar near one end of the bottom blade, locate the bolt head on top of the
bottom blade and under the rear roller
6) Adjust the front roller so that it makes contact with the height setting bar
7) Move the height setting bar to the other end of the bottom blade and repeat steps 5 & 6

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For all other turf maintenance cartridges:
1) Adjust and lock the bolt on the height setting bar to your desired working height or depth
2) Tilt the mower back and wedge securely
3) With the height setting bar near one edge of the cartridge, position one end against the rear roller
4) Adjust the front roller so that it contacts the height setting bar and the head of the bolt lines up
with the blade/tine/bristle
5) Move the height setting bar to the other end of the cartridge and repeat steps 3 & 4
Front roller
Cutting cylinder
Rear roller
Bottom blade
Height of cut
Height bar
Front roller
Cartridge
Rear roller
Depth of work
Height bar

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Original Instructions –English
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Changing a cartridge
WARNING: When the cartridge has been removed the lawn mower can tip back. Use the kick stand
provided to prevent an accident.
WARNING: Always remove the Key / Disabling device from the mower before changing a cartridge
WARNING: Blades are sharp always wear gloves and appropriate foot wear
To remove a cartridge, proceed as follows:
1) Remove the key / disabling device & lower the kick stand
2) Undo the cartridge locking screw
3) Slide the cartridge away from the drive coupling
4) Lift the cartridge out of the machine
To install a cartridge:
Lift the cartridge into the mower so that it sits on both cross rails
Align the teeth on the drive coupling, use the indicator marks to help
Slide the cartridge to engage with the drive coupling
Secure the cartridge with the locking screw.
Some cartridges weigh over 25kg, obtain assistance if required and observe best practice lifting
techniques (get help when needed, lift with legs and maintain a straight back posture)
①
③
②
④
!