Trejon OPTIMAL 151H Specification sheet

Instructions for Use
and Maintenance
Hydraulic driven Snow
Blower
151H, 191H
TREJON FÖRSÄLJNINGS AB
Företagsvägen 9
SE-911 35 VÄNNÄSBY
SWEDEN
Tel: + 46 (0)935 39 900
Note!
Read instructions before use

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TABLE OF CONTENT
1Introduction ...................................................................................................7
1.1 Foreword...................................................................................................7
1.2 Description ................................................................................................7
1.3 Working stages..........................................................................................7
1.4 Detailed description...................................................................................8
1.5 Technical data...........................................................................................9
2Safety instructions......................................................................................10
2.1 Safety directions......................................................................................10
2.2 Explanation of the symbols .....................................................................13
3Using the equipment...................................................................................15
3.1 Assembly.................................................................................................15
3.2 Attaching machine to the tractor..............................................................15
3.3 Before starting up....................................................................................18
3.4 Adjustments.............................................................................................19
3.5 Operating the machine............................................................................21
4Service and maintenance ...........................................................................22
4.1 General....................................................................................................22
4.2 Maintenance schedule ............................................................................23
4.3 Before the snowy season........................................................................24
4.4 After the snowy season...........................................................................24
4.5 Gearbox oil check and change................................................................24
5Troubleshooting..........................................................................................25
6Spare Parts ..................................................................................................26
EC-Certificate of Conformity............................................................................28

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SAFETY SYMBOLS
Note! This warning symbol is used throughout this instruction manual to call attention to safety
precautions that you, your employees or any other people that may come near the implement
must read and understand. Failure to follow these instructions may result in serious injury or
even death.
This symbol means:
WARNING!
CAUTION!
YOUR SAFETY IS
ENDANGERED!
A word of advice
Pay special attention to the words WARNING! CAUTION! and NOTE! in the safety
instructions. The words have been chosen from of the following:
WARNING! This safety sign is used to identify potential hazards that can lead to serious injury
or even death. These hazards include situations that may occur when the safety equipment
and/or the safety shields are removed. Signal words can also be used to alert about
dangerous use.
CAUTION! Failure to observe this warning sign could result in light personal injuries. The sign
is also used to indicate that the disregarding of these instructions may cause damage to the
implement.

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Dear Customer,
You have made a good choice. We congratulate you to your selection of an TREJON
OPTIMAL product that offers quality and performance with reliable service.
By reading the manual and following its recommendations you will ensure the long and
effective use of the equipment.
We have produced this manual for you to get a good understanding of the functioning of the
machine and what safety and maintenance instructions to follow when working with it.
If any question should arise when using the machine or when reading this manual, you are
welcome to contact us for further information.
TREJON AB
Företagsvägen 9
SE-911 35 Vännäsby
Sweden
Tel: + 46 (0)935 399 00
Email: [email protected]
Website: www.trejon.se

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Honoured retailer,
in order for the guarantee to be valid and to forfill all legal requirements, we ask you to fill out
the guarantee form together with the customer and register at trejon.se
The guarantee is valid from the day the equipment is handed over to the customer.
Delivery checklist:
Check for damages caused in transporting. Inform the transporting company.
Check that all packing material has been taken away. Dispose packing material in an
environmentally friendly way
Check that the machine is lubricated, see section “Service and maintenance”.
Check that all screws are properly tightened, see section “Service and
maintenance”.
Check that all guards and safety shields are properly fastened.
Check the oil level in the gearbox. See section “Service and maintenance”.
Check chain tension, see section “Service and maintenance”
Make a funtion test.
Having gone through and explained to the customer, with the help of the manual, the
startup, use and maintenance of the equipment and it’s accessories.
Fill out the guarantee form with the customer and register at trejon.se. It can be
found as an attachment to this manual and as a copy on the last page.
Instruction manual given to the customer.
Enter the serialnumber of the machine to the
right.
S/N:
Enter the serialnumber of the hydraulic motor.
S/N:

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1 Introduction
1.1 Foreword
Thank you for choosing this TREJON OPTIMAL machine. We have concentrated our efforts in
order to develop a sturdy machine that will operate trouble-free for many years. The working
life of the machine, however, depends not only on us but also on you. We have compiled this
instruction manual in order to facilitate the use of the implement and describe proper
maintenance procedures. Read these instructions carefully. Contact the retailer from whom
you purchased the machine whenever you want to order repair parts or need any other
assistance. When you are ordering repair parts, make sure that you know the right model,
type and serial number. See the identification plate on the chassis.
1.2 Description
The equipment is designed to clear snow from level ground such as roads and parking lots.
The snow blower is to be mounted on the tractor’s loader or a similar attachment frame. The
machine is designed to be driven by tractors existing hydraulic system, assumed that it can
deliver the right flow. Oil flow and working pressure at tractors hydraulic system is the factors
that decide which effect the hydraulic motor will deliver. TREJON deliver snow blower with a
hydraulic motor that will suit the figures about tractors hydraulic system given at order of new
machine.
The snow blower works best if it is mounted on a tractor that supplies recommended oil flow
regardless speed of vehicle. Therefore tractors with hydrostatic transmission, is especially
suited for work with hydraulic driven snow blowers.
For operation of the hydraulic motor of the snow blower, the tractor need following hydraulic
connections:
•A hydraulic outlet that can deliver recommended flow to the snow blower.
•A hydraulic outlet with open (pressure less) oil return directly to the tractor’s oil tank.
•A hydraulic outlet with open (pressure less) case drain oil return (max. 8 Bars back
pressure) directly to the tractor’s oil tank.
Remaining functions needs:
•A double acting hydraulic outlet is needed for turning of ejector tube.
•If the machine is equipped with hydraulic flap regulator, one more double acting outlet
is needed.
1.3 Working stages
The equipment works in three stages:
1. Break-up and feeding in with self-cleaning feed screws with cutting action.
2. Transport to the ejecting rotor.
3. The ejecting rotor will powerfully throw out the snow through the ejector tube. The
ejector tube is adjustable as to the direction and the distance of the thrown snow.

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1.4 Detailed description
1
Chassis
2
Turntable gear, hydraulic powered
3
Adjustable flap
4
Flap control
5
Ejector tube
6
Front safety bow
7
Reversible wearing edge
8
Feeding auger
9
Ejecting rotor
10
Gearbox
11
Hydraulic motor
12
Hydraulic connection, work
13
Hydraulic connection, leaked oil
14
Shear bolt clutch for feeding auger
5.
1.
3.
2.
6.
7.
8.
9.
4.
10.
11.
12.
13.
14.

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1.5 Technical data
Technical data / model
151H
191H
Item number
431003
431004
Working width, mm
1570
1870
Frame height, mm
630
630
Cutting auger, number
1
1
Cutting auger, mm
340
340
Ejecting rotor, mm
450
450
Operation of gear box, type
Hydraulic
Hydraulic
Rotating ejector tube, standard
Hydraulic
Hydraulic
Flap control, standard
Mechanical
Mechanical
Weight, basic unit, kg
334
340
Mounting variations
F - R
F –R
Mounting categorie
0+1
0+1
Due to continuous product development, any data is subject to change without prior notice.
F=Front mounted, R=Reversing.

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2 Safety instructions
2.1 Safety directions
Read operator’s manual. All drivers of the machine must read and understand all the
contents of this operator’s manual, so there is no doubt about management before using the
equipment for the first time. If any hesitation, ask your Trejon dealer about advise. It is
forbidden to use the equipment if user don’t know the risk factors at handling, and don’t know
how to act in an emergency situation.
Read, observe and understand meaning of all safety-, use-, warning- and position- symbols at
machine and in user manual.
Safety is the primary concern in the design and manufacture of our products. Unfortunately
our efforts to provide safe equipment can be wiped out by a single careless act of an operator.
In addition to the design and configuration of equipment, hazard control and accident
prevention are dependent upon the awareness, concern, prudence and proper training of
personnel involved in the operation, transport, maintenance and storage of equipment.
Allow only properly trained personnel to operate the equipment.
The machine is intended only for outdoor use.
Management. Learn how to operate the machine and how to use the controls properly before
operating the machine.
Connect the machine. Attach the machine correctly; don’t stand behind the tractor during
installation. Ensure machine is properly mounted, adjusted and in good operating condition.
Failure to ensure a secure coupling of the implement to the tractor can cause injury and
damage to the implement or tractor.
Secure the working area. Unauthorized persons, particularly children, are not allowed near
the machine while it is running or is being repaired. Before backing up, look behind carefully.
Pay attention to the injury and damage that can be caused by material thrown by machine
during operating, therefore clear area of stones, branches or other debris that might be
thrown, causing injury or damage. Take care never to aim the snow outlet towards people,
animals or buildings.
The rotating parts of this machine have been designed and tested for rugged use. However,
they could fail upon impact with heavy, solid objects such as steel guard rails and concrete
abutments. Such impact could cause the broken objects to be thrown outward at very high
velocities. To reduce the possibility of property damage, serious injury, or even death, never
allow the cutting blades to contact such obstacles.
Machines protective equipment. Do not operate the machine if not all safety guards and
shields for moving parts are in place and in good condition.
Ensure that all safety and operating signs are in good condition.
Additional safety and operating decals are available at no extra charge. Please specify model
and serial number when ordering.

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Moving parts. Keep hands, feet, hair and clothing away from moving parts of the machine.
Let the machine work by it self, don’t try to help the machine with hands and fingers.
Lifting and lowering machine. Be careful when lifting or lowering the machine.
Stability. The machine should not be mounted on a tractor with insufficient front shaft /back
shaft weight when the tractor becomes unstable and difficult to operate. When using a unit, a
minimum 20% of tractor and equipment weight must be on tractor front wheels. Without this
weight, tractor could tip over, causing personal injury or death. The weight may be attained
with a front end loader, front wheel weights, and ballast in tires or front tractor weights, read
the tractor’s instructions manual for more information.
In extremely uneven terrain rear wheel weights, front tractor weights, and/or tire ballast should
be used to improve stability.
Operating machine. Be careful and reduce the speed when working on uneven surfaces.
Watch for holes, roots, rocks or other hidden objects. Do not drive near the edge of a gully,
ditch or stream bank. When mowing over uneven terrain, observe the type of terrain and
develop a safe mowing pattern.
When driving in slopes:
Operate the machine up and down steep slopes, not across slopes, to prevent the tractor from
tipping. Avoid sudden stops and starts, slow down before changing directions on a slope. Pass
diagonally through sharp dips and avoid sharp drops to prevent hanging up the tractor and
machine. If tractor overturns, hold tight to steering wheel.
Operating in darkness. When working in the dark hours, make sure there is sufficient lighting
in the working area.
Driver. Do not operate the equipment when you are tired, sick or when using medication.
Only properly trained people with qualification is allowed to operate this machine.
Do not allow riders on the machine or tractor at any time. There is no safe place for riders.
Personal protective equipment. Personal protection equipment including hard hat, safety
glasses, safety shoes, and gloves are recommended during assembly, installation,
adjustment, maintaining and/or repairing the implement. Avoid loose fitting clothing which can
become entangled. Wear sturdy, tough-soled work shoes and protective equipment for eyes,
hands, ears and head.
Safety cabin. Operate the machine only with a tractor equipped with an approved Roll-Over-
Protective-System (ROPS). Keep doors at tractors cabin closed during operating, serious
injury or even death could result from falling off the tractor.
Daily maintenance. Inspect the entire machine periodically. Look for loose fasteners, worn or
broken parts, and leaky or loose fittings. Periodically tighten all bolts, nuts and screws and
check that all cotter pins are properly installed to ensure unit is in a safe condition.
No wrappings or foreign objects are around the machine.
Frequently check mower blades. They should be sharp, free of nicks and cracks and securely
fastened.

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Safety during maintenance and repairing. Apply hand brake and place the machine on a
hard level surface when maintaining or adjusting it. Always stop the tractor, set brake, shut off
the tractor engine, remove the ignition key, and allow machines moving parts to come to a
complete stop before dismounting tractor. Ensure that all moving parts have stopped
completely before making adjustments, servicing or cleaning the machine. If the machine has
been raised for cleaning, maintenance, inspection or repairs, it is imperative that you prevent it
from sinking or falling down by placing supports under the machine. Never work under
equipment unless it is blocked securely. Keep service area clean and dry. After servicing, be
sure all tools, parts and service equipment are removed. Clean the machine thoroughly before
repairs or storage. Be sure to thoroughly wash the machine without using excessive pressure
especially on the moving parts, bearings and electric components. After cleaning, carefully dry
the machine and lubricate it and perform a short test drive.
Vibrations. Do not use the machine if it is vibrating or shaking. Stop and investigate the
cause. Change any damaged parts.
Emergency stop. Know how to stop the tractor and machine quickly in case of an emergency.
After striking an obstacle, shut the tractor down and thoroughly inspect for damage before
restarting.
Hydraulic hoses. The machine’s hydraulic hoses contain oil under high pressure. Never
touch the hoses or other hydraulic components while there is still pressure in the system. In
case of leakage, oil under high pressure can penetrate the skin and cause serious injuries. If
accident happen, contact doctor.
Check the condition of the hydraulic hoses every day. Worn or leaking hoses must be
replaced immediately with new hoses that meet the manufacturer’s technical requirements.
The hydraulic motor and the hoses become hot during work; there is a risk for burn injury.
Never loosen the hoses while the oil is still hot. Wait until it cools down. When changing
tractor, check length of hydraulic hoses, if to long or short, they can easily be damaged.
The hydraulic motor and the hoses become hot during work; there is a risk for burn injury.
Never loosen the hoses while the oil is still hot. Wait until it cools down.
Welding. Protect bearings, electronic and hydraulic components before any welding is done.
Place earth connection close to the place for welding.
Fire danger. If any component gets over heated, stop machine and check reason. There is an
increased risk of fire when working in dry areas.
Spare parts. Use only original repair parts
Where replacement parts are necessary for periodic maintenance and servicing, genuine
replacement parts must be used to restore your equipment to original specifications. The
company will not claim responsibility for use of unapproved parts and/or accessories and other
damages as a result of their use.
Unauthorized modifications to the machine may impair the function and/or safety of the
machine and reduce its life. If equipment has been altered in any way from original design, the
manufacturer does not accept any liability for injury or warranty.

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2.2 Explanation of the symbols
The warning symbol must always be recognizable. If the warning symbols are missing from
your equipment or if they are damaged, replace them at once.
The symbol to the right shows:
Warning!
Read and follow the manual and the safety instructions
before using the equipment. Pass on all safety instructions
to other users of the equipment.
Warning!
Do not touch moving parts. Do not move about near the
PTO when the equipment is operating.
Warning!
Matter such as stones and clumps of ice may fly away
when the equipment is being used. The operator must pay
attention to where the snow is blown, and should avoid
working where people, animals and buildings are.
Maintain the safety distance.

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Warning!
Do not touch the feed blades or the feed screws as long as
the tractor’s engine is running and the hydraulic is
engaged.
Maintain the safety distance.
Warning!
Crushing hazard! When connecting, never stand between
the tractor and the equipment as long as the tractor is
moving. The tractor must be immobilized with the parking
brake whenever the operator leaves the cabin.
Warning!
Crushing hazard! When the ejector tube is lowered the
engine of the tractor and the hydraulic pressure must be
switched off. Never use your arms or your legs to clear the
ejector tube.
The CE symbol mounted by the manufacturer
confirms that the equipment altogether meets all
requirements concerning machinery directives
and other corresponding EG directives.
The serial number and model is stamped on the
identifying plate (see the picture).

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3 Using the equipment
3.1 Assembly
Caution!
No persons is allowed to be in danger area during lifting
Be carefully when cutting bands and wire because they can be very tensed. They can
also be very sharp.
Following steps will be performed during the assembling:
Take away all packing and wrapping material, and discard it in an environmentally friendly
way.
Assemble the ejector pipe and tighten the bolts (be careful, crushing hazard!).
Connection frame is bolted to the machine.
Check that all protective devices are undamaged and correctly attached to the equipment.
Before operating the machine, tasks in section 3.3 –“Before starting up” must be cleared.
3.2 Attaching machine to the tractor
Warning!
Crushing hazard! When connecting, never stand between the tractor and the equipment
as long as the tractor is moving. Always immobilize the tractor when leaving the cabin
for any coupling/decoupling work.
The machine should not be mounted on a tractor with insufficient front shaft weight,
when the tractor becomes unstable and difficult to operate. If necessary use attains
ballast weights, read the tractor’s instructions manual for more information.
Attach the machine at a hard level surface.
Attach machine to tractors connection frame.
Turn of tractor’s engine and apply the hand brake.
The machine is delivered without hoses to the hydraulic motor. Fit the hydraulic hoses to the
tractor with regard to lengths and suitable quick couplings. Connect the leak-oil line and return
directly to the tank with as little return pressure as possible (max. 8 bar back pressure).

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Connections on the hydraulic motor
The snow blower’s motor is available in different sizes in order to fit the tractor’s hydraulic
power (flow and working pressure). The type of the motor can be found on the type plate of
the motor.
Hydraulic motor SCM 40-64 SAE C
Pressure and return: Flange in accordance with SAE J518-3/4” 6000 psi. Mounts with 8 pcs
screws: 3/8 UNC 2B x 51mm.
Leak-oil (case drain): The motor has two plugged outlets. Lower: Thread 7/8”-14 UNF Upper:
Thread 9/16-18UNF (max. 8-bars back pressure).
Port. P Pressure:
Oil to the hydraulic motor pressure side is supplied through available outlet on the tractor that
delivers the recommended oil flow and pressure. The oil flow from the outlet must be
controllable from the tractor cab. Adjust the length of the hose and mount suitable quick
couplings on the tractor as well as couplings for the hydraulic motor.
Port T Return:
Oil from the hydraulic motor return side is led back to the tractor's tank via an open outlet (low
back-pressure). Adjust the length of the hose and mount suitable quick couplings on the
tractor and couplings for the hydraulic motor.
Leak-oil (case drain) line:
Oil is brought to the hydraulic motor housing during operation in order to lubricate and cool the
hydraulic motor bearings. This oil must be led back to the tractor’s tank through a separate
line. If the leak-oil lead is not connected to a pressure less (max. 8 Bars back-pressure) return
line the shaft seal is going to breakdown on the hydraulic motor.
The motor has two plugged outlets for connection for leak-oil line. Side view of the motor with
the contact flange directed downwards: Lower, thread 7/8”-14 UNF upper: Thread 9/16-
18UNF. Fill the motor with hydraulic oil up to 50%. Mount appropriate adapter to the
plugged outlets at the top of the motor (consider mounting direction),
After that connect the leak-oil line which go directly to the tractor's tank. Adjust the length of
the hose and install suitable quick couplings on the tractor.
Attach hydraulic hoses for ejecting pipe control to double acting outlets at tractor. Clean the
connections carefully before attaching. Before using the equipment, test the operation of the
ejector pipe control.
Check that machine can work freely from tractor in all predictable situations.

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Install hydraulic motor according to the manufacturer's instructions, see Appendix at
the end of this manual.
If the machine is equipped with house flushing the engine will be "cooled" with
circulating oil, see below:
T= Free return to tank P= Pressure
D= Leakage Line must be connected with a separate line to tank.

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3.3 Before starting up
Warning!
The hydraulic hoses on the machine contain oil under high pressure. Never touch the
hoses or other hydraulic components while there is still pressure in the system. Relieve
the pressure on the system first. In case of leakage oil under high pressure can
penetrate the skin and cause serious injuries.
Ensure that nobody is close to the equipment when performing the trial run.
Before starting up, following items must be checked.
Check the screws and bolts at the machine and tighten if necessary. See table with
recommended torque settings in section “Service and maintenance”:
Check that all protective devices are undamaged and correctly attached to the equipment.
Lubricate the machine (see section ”Service and maintenance”).
Check the oil level in the gearbox. The oil should reach the lower plug at the side of the
gearbox (see section “Service and maintenance”). The gearbox is filled with oil SAE 80W/90
API GL4/GL5, Industrial gear oil ISO VG 220.
Adjust height of scraper steel with support pads, and machine tilt with loaders tilt (see section
“Adjustments”)
Check that no objects have wrapped themselves around moving parts.
Test the machine. Activate the oil flow to the snow blower while the tractor’s engine is at
idle speed, and then move into high gear until you reach recommended oil flow. Ensure
that the snow blower rotates in the right direction (by studying the rotation direction of the
rotor) and that there are no oil leakages. Perform the above procedure in reverse order when
you want to turn off the snow blower; 1. Change to idle speed, 2. Stop the oil flow to the
machine.

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3.4 Adjustments
Warning!
No work at the machine is allowed unless the equipment is safely secured (don’t
completely rely on tractors 3-point connection).
Be careful when undoing the pierced rod of flap control, crushing hazard!
At any time when performing repairs and maintenance, the engine must be switched off
and the machine completely stopped mowing. Withdraw the ignition key from the
switch.
Support pads
The height of the equipment is adjusted with two supporting pads located at the back. The
angle of the equipment is adjusted by the tilt function of the tractor’s loader. This determines
how well the equipment follows the variations in the surface. If the equipment is angled
forward, it is easier for it to cut through packed snow and ice. A suitable basic adjustment
when the machine rest on the support pads, is that the wearing edge of the scraper steel is
10mm above ground. Aim at keeping the machine levelled during work.
The supporting pads are to be adjusted as the wearing edge is being worn down. The
supporting pads are adjusted by undoing the mounting screws, and mount them in other
holes.
Screws that must be
taken away, when the
height is adjusted at
the support pads.

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Ejector tube
The equipment comes fitted with a hydraulically turntable ejector tube as standard. At the end
of the tube is a flap that regulates the distance the snow is thrown. Turn up the handle that
locks the pierced rod, move the rod to the desired position and lock it again.
A hydraulically (or electrically) operated flap is available as an option. This is suitable for those
that need to change the placing of the ejected snow while operating the equipment.
Mechanical flap control (Standard) Hydraulic flap control (Option)
The ejector tube has two mounting holes. These will enable you to regulate the distance the
ejected snow is thrown.
Optional mounting holes for the ejector
tube.
Locking handle
for mechanical
flap control.