Trejon Multiforest MF650 Guide

TREJON FÖRSÄLJNINGS AB
Företagsvägen 9
SE-911 35 VÄNNÄSBY
SWEDEN
Tel: + 46 (0)935 39 900
Web: trejon.se
Instruction Manual and
Maintenance Directions
FORESTRY TRAILER
MF650, MF850, MF950
MF1050, MF1050BS, MF1202
Issue: 2105
Important!
Read the Instruction Manual
thoroughly before use

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LIST OF CONTENTS
1Introduction............................................................................................................. 8
1.1 Getting Started................................................................................................... 8
1.2 Description......................................................................................................... 8
1.3 Detailed Description........................................................................................... 9
1.4 Technical Data................................................................................................. 10
1.5 Right and Left Hand ......................................................................................... 12
2Safety Instructions ............................................................................................... 13
2.1 Safety Regulations........................................................................................... 13
2.2 Safety symbols................................................................................................. 16
3Using the Machine................................................................................................ 17
3.1 Goods receipt of the trailer............................................................................... 17
3.2 Coupling the machine to the tractor.................................................................. 17
3.3 Before starting the machine.............................................................................. 18
3.4 Operating the machine..................................................................................... 23
3.5 Frame steering................................................................................................. 26
3.6 Bogie control.................................................................................................... 27
3.7 Braking systems............................................................................................... 28
3.7.1 Brakes, hydraulically operated ......................................................................... 28
3.7.2 Brakes, compressed-air operated..................................................................... 29
3.7.3 Brakes, inertia operated................................................................................... 32
3.7.4 Inertia brake cable –inspection and adjustment............................................... 34
3.7.5 Inertia brake - service and maintenance........................................................... 35
3.8 Transporting and uncoupling............................................................................ 36
3.8.1 Parking brake –hydraulic and pneumatic brakes............................................. 36
3.8.2 Parking brake –inertia brake............................................................................ 36
3.8.3 Parking support................................................................................................ 37
3.9 Standing platform............................................................................................. 39
4Service and Maintenance..................................................................................... 40

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4.1 General............................................................................................................ 40
4.2 Maintenance schedule ..................................................................................... 41
4.3 Before season start.......................................................................................... 42
4.4 At End of Season............................................................................................. 42
4.5 Wheels and tyres ............................................................................................. 43
4.6 Axles ............................................................................................................ 44
4.6.1 Unbraked axles................................................................................................ 44
4.6.2 Braked axles .................................................................................................... 44
4.6.3 Axles –adjustment and regreasing of wheel bearings...................................... 45
4.6.4 Axles –brake shoes –control and adjustment ................................................. 46
5Hydraulic outriggers............................................................................................. 48
5.1 Carriage type.................................................................................................... 48
5.2 Telescopic type................................................................................................ 48
6Accessories .......................................................................................................... 49
6.1 Onboard hydraulic system................................................................................ 49
6.1.1 Pump kit........................................................................................................... 49
6.1.2 Oil tank ............................................................................................................ 50
6.2 Winch ............................................................................................................ 52
6.3 Hub operation................................................................................................... 54
6.4 Wiring diagram, lighting.................................................................................... 59
7Spare Parts ........................................................................................................... 60
7.1 Use original spare parts ................................................................................... 60
EC certificate of conformity ....................................................................................... 62
8Warranty certificate / Proof of transfer................................................................ 63

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SAFETY SYMBOLS
NOTE! You will find this general warning symbol throughout this Instruction Manual to make you
aware of safety instructions concerning yourself, your employees and other persons coming into
contact with the machine. Neglecting these instructions may lead to serious injury and even death.
This symbol has the following meaning:
WARNING!
LOOK OUT!
YOU ARE IN DANGER!
Warning Labels
Be aware of the warning text WARNING! and NOTE! (NOTE!) in safety texts. These words have
been chosen based on the following guidelines:
Warning!
Warns of dangerous situations which, unless avoided, could lead to serious injury or even death.
This also includes dangers that can occur when protective equipment and/or protective screens
are removed. Warning labels can also be used to warn of hazardous use.
NB!
Highlight risky situations where slight or minor injuries can result if they are not avoided. Used
also to warn of machine damage that can arise if the directions are not followed.

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Dear customer,
Thank you for choosing a Trejon Multiforest product –we hope you will be pleased.
Reading this manual and following its recommendations will ensure you get the longest possible
service life and an efficient use of the machine.
We have produced this manual to give you a good overview of how the machine works and what
safety and maintenance directions that must be followed when working with it.
If any questions should arise in its use or when reading this manual, you are always welcome to
contact us.
TREJON AB
Företagsvägen 9
SE-911 35 Vännäsby
Sweden
Tel: + 46 (0)935 399 00
E-mail: [e-mail]
Website: www.trejon.se

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Dear Dealer,
In order for the warranty to come into force and all legal requirements to be met, we would like
you to complete the warranty certificate together with the customer and register at trejon.se
The warranty will come into force on the same day as the machine is transferred to the customer.
Checklist on receipt and delivery inspection:
Check for any transport damage. Report to carriers
Inspect the machine thoroughly before use and make sure all packing material
has been removed. Dispose of all packing materials in an environmentally
responsible manner.
Checkthat the delivery is complete in accordance with the machine order/packing note.
Check tyre pressure. Refer to section 4.5
Check the tightening of the wheel nuts, these shall also be re-tightened by the user
after the first hours of operation. Refer to section 4.5
Check tightening of the bolted joints between the trolley and the crane turret
(M20 –420 Nm) (if applicable)
Check that the PTO shaft is supplied and has the correct length (if applicable)
Own hydraulics - Gear PTO-Pump correct assembly - Refer to section 6.1.1
Make sure the machine has been lubricated as described under section 4 - Service
and Maintenance
Check all the machine’s functions.
Give instructions concerning the correct PTO speed (in options for trolley or with own
hydraulics). Refer to section 6.1.1
With the assistance of the Instruction Manual, run through and explain
commissioning, use and maintenance of the machine with accessories for the
customer.
Instruction Manual handed over to customer.
Fill in the Warranty certificate / Proof of transfer together with the customer and
register the machine on www.trejon.se or www.trejon.se/enu
Enter the serial number of the machine in the
field on the right
S/N:

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1 Introduction
1.1 Getting Started
Thank you for choosing this TREJON MULTIFOREST forestry trailer. We have concentrated on
making a powerful and good machine that will serve you for many years. As the service life of
the machine does not wholly depend on us, but also you, the user, we have compiled an
instruction manual in which we describe its correct care and use. So read through these
directions thoroughly. Always get in touch with the dealership where you bought your machine
when ordering spares or other service. The dealer is your natural service partner. When
ordering spares, always specify the correct model, type and serial number (found on the name
plate on the chassis).
1.2 Description
MULTITRAILER is a series of well-built forestry trailers in the TREJON MULTIFOREST family.
Together with the TREJON MULTIFOREST cranes, it forms an easy-to-drive and versatile
forestry combination for use with your tractor. The trailers are available in sizes from 6.5-10.5
tonnes total weight. Due to the programme’s range, there are models to suit everything from
small and older tractors, to new, large towing vehicles. The comprehensive standard equipment
includes e.g. a safety gate, frame steering and hydraulic outriggers (standard on MF650,
MF850, MF950, MF1050 and MF1202). The MF1050BS is a trailer with bogie control. The
accessories include: radio-controlled winch, hydraulic hub operation, brakes, oil tank, own
hydraulic system (PTO), crossover props, driving lights, etc. The largest model, the MF1202, is
a trailer with a double frame.
Always check the current range of accessories on Trejon’s website www.trejon.se or
www.trejon.se/enu

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1.3 Detailed Description
1. Towing eye
9. Gate
2. Towbar
10. Struts
3. Fixing plate, towbar
11. Bunk (attachment for struts)
4. Parking support
12. Bogie frame
5. Frame steering axle
13. Bogie cradle
6. Cylinder-Frame Steering
14. Bogie axle
7. Hydraulic outriggers
15. Wheels
8. Centre frame with crane pallet

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1.4 Technical Data
Model
MF650
MF850
MF950
MF1050
MF1050BS
MF1202
Total weight -
unbraked
6.5
8.5
9.5
10.5
10.5
12
Total weight -
inertia brake
5.9
8
8
—
—
—
Total weight -
braked
5.8
8.5
9.5
10.5
10.5
12
Maximum
permitted speed
km/h*
25
40
40
40
40
40
Loading area ,
m2
1.43
2.0
2.15
2.3
2.5
2.5
Frame, type
Central
Central
Central
Central
Central
Double
Frame, mm
120x120x8
160x160x8
160x160x8
160x160x8
160x160x8
200x100x6
Brakes
O
O
O
O
O
O
Bunks with struts
(pair)
2
2
2
2
2
4
Hydraulic
outriggers
Telescopic /
Carriage
—/ ●
●/ —
●/ —
●/ —
●/ —
●/ —
Trailer control
—
Framework
Framework
Framework
Bogie
Frame
Frame Steering
–angle
—
±45º
±45º
±45º
—
±45º
Frame Steering -
cylinders
—
1
1
1
—
2
Bogie deflection
±25º
±28º
±28º
±28º
±28º
±18º
Sliding bogie
—
●
●
●
—
—
Axles
60x60
70x70
70x70
70x70
70x70
70x70
Standard wheels
300/80–
15.3
300/80–
15.3
400/60–15.5
TRAC
400/60–15.5
TRAC
400/60–15.5
TRAC
520/50–17
TRAC
Weight (basic
design), kg
880
1,230
1,425
1,490
1,520
2200 kg
* - for unbraked forestry trailers, for braked trailers contact Trejon
Due to a policy of continuous development, the technical data specified in our document is not binding and may be changed without
prior notice. Information specified in the table above may also show equipment that is not standard.
The equipment level may vary depending on user country.
●: Standard O: Option —: Missing

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Dimensions
All measurements are stated in mm for trailers with standard wheels. The towbar’s height
measurements G1 and G2 can be adjusted by +100 mm on all trailers.
1 - P measurements for the trailer with inertia brake
²- X measurements can be adjusted by max. ±200 mm
Warning!
You may move the bogie max ±200 mm from its original position, as shown below.
Model
A
B
C
D
E
F
G1
G2
H
I
J
K
P 1
X
MF650
990
3010
3050
4680
1270
1225
445
730
1770
1720
530
1710
685
1900
MF850
990
4050
3420
5600
1460
1150
500
785
1940
1960
580
1905
740
24002
MF950
990
4050
3420
5600
1460
1160
500
785
2090
1960
580
2005
740
24002
MF1050
1180
3950
3420
5600
1500
1160
500
785
2090
2060
520
2030
-
24002
MF1050BS
990
3940
3620
5800
1500
1170
500
785
2060
2090
530
2280
-
2300
MF1202
1260
4050
4115
6040
1500
1280
550
830
2190
2210
610
2390
-
2750

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Right
Left
1.5 Right and Left Hand
In this Instruction Manual, the terms right and left hand apply as looking toward the rear of the
tractor, i.e. as seen from behind in the direction of travel of the machine.

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2 Safety Instructions
2.1 Safety Regulations
Read the manual. All machine operators should read and understand the entire contents of this
manual and the safety regulations so there is no uncertainty as to the use of the machine/tool
before it is taken into service. Get in touch with your dealer if you have any questions.
Use of the machine is strictly forbidden if the operator is not aware of the risks involved in
conjunction with the use of the machine and cannot act correctly if a risk situation should arise.
Read, observe and understand the meaning of all safety, operating, warning and positioning
decals on the machine and in the manual.
Actions may occur when using this equipment that cannot be prevented in its design or with the
use of mechanical protection.
Unfortunately, human carelessness may cancel the function of our integrated safety features.
Accordingly, the prevention of accidents and operating safety features are dependent on the
responsible use of the equipment and its integrated safety features.
Only trained personnel should use this equipment. TREJON is not liable for any injury or loss
caused by misuse or improper, careless or inappropriate use of the machine.
Only trained personnel should use this equipment.
The machine is intended for outdoor use only.
Operation. Learn and practise the machine’s working methods and controls before it is used.
Coupling the Machine. Connect the machine in the correct manner and keep away from the
area between the tractor and the machine when coupling.
Make sure the equipment is correctly mounted, adjusted and in working order.
Safe Work Area. Keep unauthorized persons, especially children, away from the working zone
of the machine or when it is being repaired. Make sure you are in control of the entire work area.
The Machine’s Safety Equipment. The machine may only be used if all the manufacturer’s
original safety equipment for moving mechanisms are positioned correctly and in working order.
Ensure all safety and operating decals are in good order and affixed in the correct manner and
replace them if necessary. Write the model and serial number when ordering.
Moving Parts. Keep arms, legs and other body parts as well as clothing away from any moving
parts of the machine. Do not wear loose fitting clothes.
Leave themachinetowork on its own and do not insert handsor fingers in an attemptto give assistance.
Power Take-Off (PTO) shaft. When changing tractors, always check the length of the power
take-off shaft. If too long, it may damage both tractor and machine.
The use of incorrect power take-off shafts that do not meet with specifications is strictly
forbidden.
Ensure power take-off guards are correctly mounted and in good order and firmly fixed to the
tractor.
The use of damaged or defective power take-off guards is strictly forbidden
Purchase a new power take-off guard if the old one is defective.
Lifting and lowering of the machine.
Be careful when lifting and lowering the machine/machine part.

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Stability. The machine must not be operated with a tractor that does not weigh enough over the
front/rear axle so that tractor stability is affected. At least 20% of the tractor weight shall rest on
the front axle to ensure tractor steering and braking ability.
Mount ballast weights if necessary, see tractor instruction manual.
When working with the grapple loader first load the smallest and closest logs so that the trailer
attains good stability before starting to load the heaviest logs.
Operating the Machine. Take great care when working on uneven ground conditions, close to
ditches and fences, look out for hidden dangers and adapt your working rate.
Great care should be observed when working on steep slopes:
Try to drive in the same direction as the incline and not across it.
Avoid fast starts and heavy braking when driving the machine up and down inclines.
If it is absolutely necessary to drive across steep inclines then reduce your speed and watch out
for unevenness, avoid sudden turns and be aware of the shift in centre of gravity that occurs
when lifting mounted tools.
Hold onto the steering wheel tightly if the tractor should overturn.
Operating at Night. The work area must be illuminated when working in the dark.
Driver. Operators who are tired, intoxicated, drugged or under the influence in any other way so
that they cannot control their movements must not use the machine.
The machine may only be operated by one person sitting in the tractor, no passengers are
allowed.
It is forbidden for people without a tractor driving licence to use the machine.
Personal protective equipment. Protective equipment such as helmets, protective goggles,
protective shoes and gloves are recommended for personnel during assembly, operation,
adjustment and maintenance. Keep the tractor door and windows closed when working in dusty
conditions.
Protective Cab. The machine should only be driven by a tractor equipped with an approved
protective cab. Keep doors and windows close while working.
All moving parts, including engine, must be stationary and the handbrake applied before the
tractor driver leaves the cab. The rear window and the rear side windows of the cab must be
made of safety glass or be equipped with protective bars when working with a grapple loader.
When travelling on ice-covered water the roof hatch must be kept open.
Maintenance. Inspect, adjust and maintain the machine according to the directions. It is
forbidden to work with a damaged or defective machine.
Regular Inspection. Inspect the entire machine regularly. Locate any loose, worn and damaged
components and leaks.
Safety During Maintenance and Service. The machine must be standing on firm, even ground
for maintenance and adjustment.
The tractor engine must be shut off, all moving parts stationary, the machine lowered to the
ground and the handbrake applied during all cleaning, inspection, adjustment, maintenance and
repair work.
Clean the machine thoroughly before repair and storage.
Bearing and hydraulic components should not the cleaned with high-pressure jets.
If excessively high pressure is used for general cleaning, this may damage the paint.
After cleaning, the machine must be lubricated according to the lubrication schedule and a short
test run carried out.
Vibration. If any vibration should occur in the machine, it must be shut down immediately and
the cause located. Change any damaged parts.

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Electric Main Switch. Stop the machine immediately if it should hit an obstruction. Shut off the
engine, remove the key, check for and repair any damage before recommencing work.
Make yourself aware of how emergency stops work on the tractor and the tool, and be prepared
of how they work in an emergency situation.
Hydraulic Hoses. Hydraulic hoses on the machine contain oil at very high pressure. Do not
touch hoses and hydraulic components if the system is pressurised. In case of leaks, oil at high
pressure may penetrate the skin and cause serious injury. In the event of an accident, contact a
doctor immediately.
Check the condition of hydraulic hoses with respect to damage. Chafed and leaking hoses
should be replaced immediately with new that meet the manufacturer’s technical requirements.
When changing tractor, always check the length of hoses. Hoses that are too long or too short
may be damaged.
The use of incorrect hydraulic hoses that do not meet with specifications is strictly forbidden.
Hydraulic motors and hoses can get extremely hot while in operation with risk for burn injuries.
Do not loosen hoses while the oil is hot, wait for it to cool down.
Hydraulic hose life can be difficult to determine, we therefore recommend that all hoses are
replaced after 5years.
Welding. Protect bearings, hydraulics and electronic components if welding is being carried out.
Before welding commences, electronic components must be disconnected and the welder’s
ground clamp placed as close to the welding site as possible.
Fire Risk. If overheating of machine parts should occur, the cause must be located and the
machine shut down. Forest residue is very flammable, remove wood remains and dirty oil.
Keeping a fire extinguisher nearby is recommended.
Smoking in the vicinity of the machine is forbidden.
Electrical Lines. Take great care when working close to electrical lines, maintain a safe
distance with good margin.
If an accident should occur and the crane comes into contact with live lines.
-Keep calm, act rationally so as not to worsen the situation and do not touch any metal
parts.
-Warn people in the vicinity and make sure they stay outside the risk zone.
Spare Parts. Use only original spare parts on the machine.
If you should have any questions concerning the machine or its function, please get in touch
with your dealer or Trejon AB

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2.2 Safety symbols
All warning decals must be clean and legible.
Lost or damaged decals must be replaced. Order new decals from your dealer.
The symbol on the right shows the following:
Warning!
Study the instruction manual carefully
before use, so that the user is very familiar with the
machine.
Machine name plate with CE marking. This
includes the machine’s serial number, weight,
total weight, year of manufacture and model
number.

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3 Using the Machine
3.1 Goods receipt of the trailer
NOTE!
Ensure no-one is inside the risk area when lifting.
Take care with straps and wires when they are removed as they are tensioned very hard.
They can also be very sharp. If the machine is dismantled on delivery, assembly and
resetting must be performed correctly (see table for correct tightening torques).
3.2 Coupling the machine to the tractor
Warning!
Crush risk. Do not stand between machine and tractor when coupling. Always apply the
brake on the tractor when leaving the cab during all coupling and uncoupling.
The machine may only be coupled to a tractor if there is sufficient weight over the front
and rear axles respectively so that steering and brakes function when the machine is
coupled. Use ballast weights as necessary, see the tractor’s instruction manual.
Use only the original PTO supplied with the machine. Carefully read the instructions
provided with the PTO shaft. The instructions contained in this manual do not replace the
information in the manufacturer's manual.
NOTE!
Check the speed and direction of rotation of the tractor’s PTO so that it corresponds to
that specified on the machine.
If the hydraulic hoses are not connected to the tractor in the prescribed order (return hose
plugs IN first, and OUT last) then there is a risk of damage to the seals in the valve package.
Max. 150 bar. If a higher hydraulic pressure is used, damage to the braking system can occur.
•The machine must be coupled on an even and flat surface.
•Stop the tractor and apply the handbrake.
•The trailer must be connected to a tractor with lockable hitch.

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•Always connect the hydraulic package’s return hose first (female) to a unpressurised
return outlet and then the delivery hose (male) to the hydraulic system’s pressure outlet
(that must be depressurised during connection). Uncouple in reverse order, i.e. first
uncouple the pressure hose (male) and then the return hose (female). Ensure the
couplings are cleaned well before connecting.
•The forestry trailers can be equipped with service brakes. Connection of hydraulic brakes
according to section 4.7.1. Connection of pneumatic brakes according to section 4.7.2.
The brakes shall be checked and maintained according to the instructions in the
maintenance section.
•Adjust the PTO shaft to the correct length. Pull the shaft apart and fasten each part to
the machine and tractor. Make sure that the shaft does not bottom out in the shortest
position (at least 30 mm play –if not, cut the shaft) and that the shaft halves’ overlap is
large enough (at least 300 mm). Refer to the instructions supplied with the shaft. Strive
to achieve the greatest possible overlap.
(alternatively for axes shorter than 1000mm, half of the maximum overlap)
•Lubricate and mount the PTO shaft. Make sure the locking pins on the shaft lock properly.
Fasten the protection tubes of the PTO shaft with the chains so that they do not rotate.
•Connect the power supply to the traffic lights to the 7-pole socket on the rear of the
tractor. The operating voltage is 12 V.
•Make sure that the machine and its hoses move freely from the tractor and that there are
no crushing injuries in all possible work situations.
3.3 Before starting the machine
Before using the machine, check the following items on the machine:
•All screws and nuts must be tight (check and retighten screws and nuts after the first 4
hours of operation and then after every 40 hours). Including wheel nuts. For correct
torque settings refer to the tables in section 4.1, 4.2 and 4.5.
•Ensure all guards are in place.
•Lubricate the machine (refer also to section 4 –Service and Maintenance).
•Tyre wear
•Air pressure in tyres (refer to Technical Data, section 4.5).
•Check the lighting and signal lamps (brake and blinkers)
•Check the function of the braking system.
•Make sure that the machine is in good condition.

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•Check the towbar’s fastening to the trailer.
Towbar on forestry trailers MF650, MF850, MF950, MF1050 and MF1050BS is anchored
with M20 class 8.8 screws to the fixing plate (B) –refer to the example below. It is
important to check the towbar’s screw unions after first use and then at regular intervals
... –refer to the tables in sections 4.1 and 4.2.
•Check the fastening and lubrication of the towing eye.
On many models, a towbar with screw-in towing eyes are used. Trejon uses hole pattern
DIN 100x110 with 8 threaded (M16) holes –refer to the image below. It is important to
check their screw unions when changing or during use (example, refer to fig. below).
Check the table. The eyes are equipped with lubrication nipples (B). Lubricate the towing
eye at regular intervals –refer to the table in section 4.2. Lubrication is important for the
towing eye to work properly and to reduce wear on it.
M16x60 –10.9
B
M20 –8.8
B

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•Check the wear of the towing eye. If damage to the towing eye has been caused, the
towbar must be replaced immediately. It is necessary for the towing eye to be checked
for defects and wear-measurements prior to every use of the trailer. Checking is the
responsibility of the user.
•Towing eye Hitch D50 (Scandinavian) –Trejon art.no. 400398.
Dimensions
Description
Nominal
dimensions
[mm]
Wear
dimensions
[mm]
A
Inner diameter of
eye
ø50
ø52.5
H
eye height
35
32.5
T
eye thickness
32
29.5
Change the towing eye immediately if any of the above nominal dimensions
reaches the wear dimension limit.
•Towing eye DIN D40 –Trejon art.no. 400399
Dimensions
Description
Nominal
dimensions [mm]
Wear measurements
[mm]
A
Inner diameter of eye
Ø40
Ø41.5
H
eye height
43
35
Change the towing eye immediately if any of the above nominal dimensions
reaches the wear dimension limit.