Uniforest 85MR User manual

1
Instructions for use
FORESTRY WINCH
85MR
Instructions for safe work
Spare parts list
THE MANUFACTURER:
Uniforest d.o.o.
Latkova vas 81d
3312 Prebold
www.uniforest.si
Valid from serial number:
85MR
11614000224

2
GENERAL
Dear customer!
We would like to congratulate you for the purchase of our machine. The hydraulic forestry
winch is a forestry machine with a modern design and a construction which enables
efficient and safe work in the woods. Work in the woods can only be safe if you observe
the instruction for safe use. If you follow the instructions the machine will work perfectly
and there will be no unnecessary expenses.
We recommend you to carefully read the user manual. In case of doubt do not hesitate
to contact us.
We wish you safe work with the machine.
1. Index
GENERAL .........................................................................................................................................2
1. Index...................................................................................................................................2
2. Intended use .....................................................................................................................3
3. Tehnični podatki:...............................................................................................................3
SAFETY INSTRUCTIONS....................................................................................................................4
INSTRUCTIONS FOR USE..................................................................................................................8
1. Description.........................................................................................................................8
2. Required equipment of the tractor.................................................................................8
3. Pto shaft adjustment.........................................................................................................8
4. Tractor mounting...............................................................................................................9
5. Wire rope unwinding.........................................................................................................9
6. Towing ..............................................................................................................................10
SETTINGS........................................................................................................................................11
1. Clutch...............................................................................................................................11
2. Safety brake ....................................................................................................................11
3. Brake ................................................................................................................................11
4. Drive chain tensioning....................................................................................................13
7. Wire rope assembly.........................................................................................................14
MAINTENANCE LUBRICATION.....................................................................................................14
TROUBLESHOOTING ......................................................................................................................15
EC DECLARATION OF CONFORMITY ...........................................................................................17
Spare parts list..............................................................................................................................18

3
2. Intended use
The machine is designed exclusively for normal work in the woods. Any other use is considered
as unintended. This winch can only be used for pulling loads on the ground. The
manufacturer is not liable for any damage resulting from inappropriate use. In this case, the
user takes all responsibility. Intended use also includes observing operational, handling and
maintenance conditions specified by the manufacturer. The machine can be operated only
by a person who is qualified and informed about the dangers and consequences of
inappropriate use. Relevant safety regulations as well as general regulations on technical
safety of devices, health regulations and road rules must be observed. The manufacturer is
not liable for any damages that may arise from users making unauthorized changes on the
machine.
3. Tehnični podatki:
Unit
85M
Working group
EM
1
Pulling force
kN
85
Brake force
kN
106,25
Wire rope medium speed
m/s
0,60
Wire rope maximum
length
mm/m
10/120
11/105
mm/m
12/90
Wire rope length (serial)
mm/m
11/70
Tractor
required power
kW
min. 50
KM
min.68
Tear force
kN
160
Rated strength
N/mm2
2160
Width
mm
1800
Depth
mm
780
Height without protective net
mm
1830
Height with protective net
mm
2300
Weight(without wire rope)
kg
571
Revolutions on cardan
min-1
max. 540
Wire rope
diameter
Manufacture year
Serial no.
c
c
Pulling force at the
internal diameter
of the drum
Pulling force at the
external diameter
of the drum
Operating pressure
Wire rope
length
Min. breaking
force
Specific min.
breaking force
Max. PTO shaft
revolutions
Weight of the
machine
Machine type

4
SAFETY INSTRUCTIONS
When working with the winch you need to observe the safety instructions!
In order to prevent accidents carefully read and observe the following instructions:
1. General:
1. Apart from the instructions in this user manual you should also observe all general safety
and accident preventing regulations.
2. When working with the winch, it is necessary to comply with the rules of safety at work.
3. Only persons, who are older than 18, are allowed to work with the winch.
4. Safety and warning plates on the machine provide important instructions for safe use.
Observe them for your safety.
5. The winch or its flawless operation should be checked before every use or at least
once every working day. Defects should be removed by an expert. Before first use or
after significant alterations and at least once a year the winch must be examined by
an expert.
6. When using public transport routes observe traffic signs and regulations.
7. When using the winch wear personal protective equipment(helmet, gloves,
appropriate footwear,...).
8. Before starting and driving check the surrounding area (children). Maintain adequate
visibility.
9. Riding on the winch during transport is not allowed.
10.Connect the winch according to the instructions.
11.For on road travel the machine must be in the following condition. If the winch covers
the rear lights of the tractor and they are not visible during transport on public roads,
install additional lights on the winch.
12. Adjust the driving speed to the environmental conditions. When driving up or down or
across a slope avoid sudden turning of the steering wheel.
13. Do not stand in the danger area.
14. If the tractor is not blocked against moving with a brake or wheel blocks, no person
should be standing between the tractor and the winch.
15. Do not touch the winch until every part of the winch has stopped.

5
16. Check mounting bolts regularly.
17. Before use the winch must be visually inspected. At least once a year, the winch must
be inspected by a professionally qualified person.
18. During any work on the winch you must turn the tractor off.
19. It is forbidden to remove the safety devices from the winch.
20. Use a tow rope of adequate strength and quality (see the factory plate).
21. A damaged wire rope must be replaced immediately.
22. It it necessary to use a wire rope of an appropriate lenght. When you wind the rope
up, a distance of 1,5 of rope diameter to outer diameter of the drum should stay on
the drum. When you unreel the rope, a minimum of 3 rope wraps should stay on the
drum.
23. The assistant is not allowed to connect load on the winch until he has informed the
tractor driver about it.
24. It is especially dangerous to stand next to the tree that you are about to pull (Figure 1).
25. When using a relay pulley there is a triangular danger area, where you are not
allowed to stay during the tow (Figure 2).
Figure 1 Figure 2
26. When towing observe the maximum allowed angle of 30º (Figure 3).
27. On uneven terrain or when not observing the maximum allowed towing angle there is
a danger of the winch rolling over (Figure 6).
Figure 3 Figure 4 Figure 5
28. Do not use the winch for unintended purposes (lifting loads, etc.).(Figure 5)
29. Tractor driver and assistant must continuously communicate during their work.

6
30. The winch operator must continuosly observe the load during the tow. If this is not
possible due to the configuration of the terrain, the assistant should help.
31. The tractor to which the winch is connected to must have a minimum tyre profile
which still meets the traffic regulations. Otherwise the wheels must be fitted with snow
chains. Chains are also obligatory when working in snow and ice.
32. When disconnecting the winch, you first need to choose an appropriate hard and flat
surface. Fix the winch by means of support legs. Lean the drive shaft on the prepared
holder.
33. In the area of the three point linkage there is a danger of injuries due to compression
or crushing.
34. The winch can be operated only from a safe place from which the load, wire rope,
rope hook or the winch itself do not pose a threat to the operator. A safe place can
also be the tractor seat if the winch has a safety net of sufficient size. When operating
the winch outside the tractor seat the operator must be provided with an appropriate
protection, e.g. the tractor itself, secure location at a sufficient distance from the
vehicle, e.g. behind a tree. Logs can be monitored from the side next to the
connection and shorter timber can be monitored diagonally behind the load. (See
Figure 6).
35. During the tow, it is forbidden to stand between the load and the winch as well as in
the danger area between the winch, relay pulley and load. (See picture 7).
36. Before operating the winch, make sure that the winch butt plate is securely anchored
to the ground. In the event of soft ground, steep slopes or when pulling heavy loads,
the tractor must be fastened with an additional rope or chain. This will prevent the risk
of slipping or even overturning of the tractor.
37. Adjust the speed of load pulling and the size of the load to the tractor’s power
capacity. You should also pay attention to the inclination of the slope and the terrain
to avoid a rollover and to maintain a safe steering and braking performance.
38. The hitch on the winch is designed as a work tool and should not be used on public
roads

7
Figure 6 Figure 7
CARDAN SHAFT
1. Only use such cardan shafts which are recommended by the manufacturer.
2. The cardan shaft protection pipes, protective funnels and attachment protection
must be mounted on the machine and be in perferct condition.
3. Observe the recommended pipe protection in transport and working position.
4. The cardan shaft can only be connected or disconnected, when the cardan
attachment is turned off, the engine has stopped and the ignition key has been
removed.
5. The cardan shaft must always be properly mounted and protected.
6. Secure the cardan shaft agains rotating with a chain.
7. Before switching on the cardan shaft on the tractor make sure that the chosen
speed and direction of rotation match the requirements from the chapter
Technical data.
8. Before switching on the cardan shaft make sure no person is standing in the danger
area of the machine. This rule must also be observed during machine operation.
9. Never switch on the cardan shaft when the engine is turned off.
10.Put the disconnected cardan shaft on the intended holder.
Danger area
Tree
Triangle
area
Oscillating rope
Torn–off pulley
Pulley
Tow rope

8
INSTRUCTIONS FOR USE
1. Description
A winch is a machine intented for harvesting felled timber from the forest. The basic
components are: welded frame, drive part, drum with wire rope, clutch, brake and
directional pulley. Using the wire rope, the logs can be towed to the moldboard and
attached with forestry chains to the grooves on the winch frame. Then the logs can be
transported to a place which is accessible by other means of transport.
2. Required equipment of the tractor
-PTO shaft with chosen gear ratio, max. 540 RPM.
-Three-point hitch of I and II category.
Maximum number of revolutions and direction of tractor PTO shaft rotation is 540 min-1.
3. Pto shaft adjustment
Length of PTO shaft needs to be adjusted for different tractors (figure F1-F4). For winch
85MR, the use of PTO shaft with torque 695 Nm (type W 400E Walterscheid) is appropriate.
Ascertain the accurate length in the following manner:
1. Shut down the tractor.
2. Connect the machine to the tractor.
3. Extract the PTO shaft apart and connect the individual shaft halves to the tractor
and machine and compare them crosswise and mark them (figure F1).
4. Shorten external and internal plastic protection pipes (figure F2).
5. Shorten external and internal slide profiles with the same distance as plastic
protection pipes (figure F3).
6. Crop the pipe end, remove fillings and grease the slide positions well (figure F4).

9
4. Tractor mounting
When connecting the winch, do not stand in the danger zone!
The forestry winch can be attached to every tractor with a three-point hitch with a
category I or II coupling. Appropriate construction also enables easy connection to the tractor
with automatic connection rods. Connect the prescribed PTO shaft and secure cardan protection
with a hang chain.
Be careful that the cardan clicks into place on both connection points!
Once the winch is attached to the tractor, strengthen the stabilizers on the lower connection rods
and level the winch with a hitch nut into position, so that the winch is tilted backwards for
approximately 20 degrees.
5. Wire rope unwinding
Warning
Steel rope must be completely unwound before first use and wind it back on the
generator drum under load.
For instance, we can do this so that we attach the rope to a standing tree and pull the
tractor with slight braking to the tree. This procedure must be done also before trying to
tow, if we towed downhill beforehand or if the rope was wound loosely during towing.

10
ATTENTION!
Loosely wound steel rope can be damaged (stuck, bent) at greater load, so that it is
prohibited to use it again.
Warranty does not apply for a steel rope, which is damaged in such manner.
Once the winch is properly connected to the tractor, you can start unreeling the wire
rope. Pull the wooden lever on a red string (pos. 3, figure 11) and thus move lever 2 to the
OFF position (figure 11). The brake is released and the wire rope can be unreeled. In case
you have just installed the wire rope on the drum or you have noticed that the wire rope is
not installed properly, you should unreel the entire wire rope and then reel it back tightly,
as described in the beginning of this chapter.
6. Towing
Figure 9
Lower the winch on the ground so that the winch is supported by a hard surface. Engage
the hand brake. Never start towing if a winch is not in a stable position on the ground.
Before you pull the black string (pos. 10, figure 11), check that the string is installed
properly between the small pulleys (pos. 9, figure 11). The lever (pos. 1, figure 11) should
return to its original OFF position as soon as you stop pulling the string (pos. 10, figure 11).
If this string is not wound properly, it may happen that you will not be able to stop the
towing, which can lead to an accident.
Any interference with the activation mechanism which would prevent synchronous
operation of clutch and brake is prohibited. It is also forbidden to pull the red brake string
(pos. 3, figure 11) during the towing.
It is forbidden to lift the hydraulic linkage during the towing (it can lead to a malfunction of
the PTO shaft).