Uniforest 35M User manual

Instructions for use
FORESTRY WINCHES
35M / 40eco
Instructions for safe work Spare parts list
Manufacturer:
Uniforest d.o.o.
Dobriša vas 14/a
3301 PETROVČE
www.uniforest.si
Valid from serial number onwards:
35M
142004321
40eco
143004101

2
Dear customer!
We are pleased that you decided to purchase our machine. Forestry winch is a forestry
machine of modern design, whose construction enables effective and safe work in the
forest. Work in the forest can only be safe if you follow the instructions for safe work and use.
Upon following all instructions, the machine will operate flawlessly, and you will avoid
unnecessary costs. We recommend reading the instructions carefully. If you are not sure
about something, you can also contact us. We wish you safe work.
1. Index
1. Index ............................................................................................................................................... 2
2. Intended purpose......................................................................................................................... 3
3. Technical data:............................................................................................................................. 3
1. General:.......................................................................................................................................... 4
2. Cardan shaft.................................................................................................................................. 7
INSTRUCTIONS FOR USE........................................................................................................................... 8
1. Description ..................................................................................................................................... 8
2. Tractor mounting........................................................................................................................... 9
3. Wire rope unwinding .................................................................................................................... 9
4. Winch controler........................................................................................................................... 10
SETTINGS.................................................................................................................................................. 11
1. Clutch ........................................................................................................................................... 11
2. Preliminary brake ........................................................................................................................ 11
3. Brake ............................................................................................................................................. 11
4. Drive chain tensioning................................................................................................................ 13
5. Wire rope assembly .................................................................................................................... 13
MAINTENANCE....................................................................................................................................... 14
explanation of nameplate .................................................................................................................. 16
SPARE PARTS LIST.................................................................................................................................... 17
EC DECLARATION OF CONFORMITY................................................................................................... 28

3
2. Intended purpose
The machine is intended exclusively for normal work in the forest. Any other use outside of this
framework holds as unintended. The manufacturer is not liable for damages, resulting from
unintended use. In this case, the user is the sole bearer of risk. Intended use also includes
regarding operational, service and maintenance conditions, which are prescribed by the
manufacturer. Only persons, who are trained and acquainted about the dangers and
consequences, which can result from improper use, can operate the machine. Relevant
safety regulations must also be followed, including generally valid safety-technical,
occupational medicine and road traffic regulations. Own interference and modifications of
the machine exclude the manufacturer’s liability for damages resulting from this.
3. Technical data:
Unit
35M
40eco
Work group
EM
1
1,2
Towing force
kN
35
40
Brake force
kN
37,5
50
Wire rope medium speed
m/s
0,90
0,90
Wire rope maximum length
mm/m
8/115
8/115
mm/m
9/90
9/90
Wire rope length (serial)
mm/m
10/70
11/60
Tractor required power
kW
22-35
25-35
PS
30-48
34-48
Calculated tear force
kN
70
80
Rated strength
N/mm2
70
80
Width
mm
1200
1400
Length
mm
450
470
Height without protective net
mm
1160
1160
Height with protective net
mm
2000
2000
Weight (without wire rope)
kg
245
235
Power take-off RPM
min-1
max 540
max 540

4
INSTRUCTIONS FOR SAFE WORK
When operating the winch, you must devote maximum attention to safety! To prevent
accidents, carefully read and follow the instructions below.
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.

5
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.
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).

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.
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).

7
Figure 6 Figure 7
2. 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
The winch is intended for towing of cut-down timber from the forest and timber ramping. It is
constructed of welded housing, drive mechanism, clutch, drum with wire rope, brake and
diverting pulley. With the help of wire rope, the timber is towed to the ploughing attachment
and attached on the grooves on the winch housing with forestry chains. Then, the timber
can be transported to the place, where other transport means have access.
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.
PTO SHAFT ADJUSTMENT
Length of PTO shaft needs to be adjusted for different tractors (figure 6). For winch 35M, it is
appropriate to use a PTO shaft, torque max. 355 Nm, type W 200E, for 40eco torque max. 500
Nm, type W 300E Walterscheid.
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 8.1).
4. Shorten external and internal plastic protection pipes (figure 8.2).
5. Shorten external and internal slide profiles with the same distance as plastic protection
pipes (figure 8.3).
6. Crop the pipe end, remove fillings and grease the slide positions well (figure 8.4).

9
Figure 8
2. Tractor mounting
When connecting the winch, do not stand in the danger zone!
Forestry winch can be connected to any tractor, which has a three-point hitch, with
connection frame of category I or II. 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!
For transfer of torque from the tractor to the winch, it is advisable to use a PTO shaft with a
clutch. 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.
3. 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 correctly connected, we start to unwind the wire rope. We do this so that
we pull the wooden handle on the red rope (pos. 2, figure 11) and in this way move handle 1
in direction OFF (figure 10). Brake is released and the wire rope can be unwound. In case
that we just installed the wire rope on the drum or we observe that it is not properly wound,
we unwind the entire length of the wire rope and wind it strong, as given in the start of this
chapter.
4. Winch controler
Figure 9
Lower the winch on the ground. In this manner, the winch strengthens on
the surface by the board and we engage hand brake. Under no circumstances it is allowed
to start working, before the winch is secure on the ground.
Before starting pulling the black rope, check that it is properly wound between the small
pulleys (figure 12). This winding is correct when the handle (pos. 6) returns in the starting
position OFF (figure 9), after we stop pulling the rope (pos. 5, figure 12).
If the rope is not properly wound, a situation may arise, where the winch towing does not
stop on our wish, which can result in an accident.
Any intervention in the engagement mechanism, which would stop synchronous operation of
the clutch and the brake, is prohibited. It is also prohibited to pull the red rope of the brake
(pos. 2, figure 11) during towing.
During towing, it is prohibited to lift the hydraulic lever system (PTO shaft power takeoff failure
may arise).

11
SETTINGS
1. Clutch
Proper setting of the clutch ensures optimal pulling force. Clutch is factory set upon winch
testing, but it is required to set it again due to wear of the friction coating.
Readjustment is not allowed during warranty period!
Setting is done so that we mount a dynamometer on the black rope. If there is no
dynamometer on disposal, spring scale with appropriate weighing range can also be used.
Once the dynamometer (scale) is mounted, pull the rope with force of 350 N (35 kg) and
follow the handle position (pos. 6, figure 12). In plan view, this handle is shown on figure 12a.
Nut on the main shaft (pos. 9, figure 12) regulates the handle position (pos. 6) as long as the
handle starts moving away from the rest, but no more than 5 mm! If the nut is over-tightened
(pos. 9, figure 12) and it has moved away from the rest for more than 5 mm, the required
axial force on the frictional surface of the clutch was reduced excessively. The winch will not
gain required towing force or the frictional surface of the clutch will be damaged due to
sliding.
2. Preliminary brake
With screw (pos. 10) and wing nut (pos. 11, figure 12) set the preliminary brake. Proper setting
ensures that the wire rope does not automatically or too easily unwinds from the drum. This
could cause too loose winding and damage to the wire rope, if the brake is unburdened or
when unwinding. Preliminary brake is properly set when it is still possible to unwind the rope
without greater effort. If we pull the rope uphill, it is possible to additionally unburden this
brake, so the towing of rope is easier, but it must be returned to its original position
afterwards.
3. Brake
Brake setting is done by a nut (pos. 3, figure 11). Brake handle (pos. 1) is in OFF position (figure
10). Firstly, use a fork wrench to set the nut (pos. 3). Distance between the roller (pos. 4) on
the handle and the nut should be approximately 7 mm. If the brake force is not sufficient,
repeat the procedure and tighten the nut (pos. 3) again to the right. If the brake is set to
excessive force, the unwinding of the rope is made more difficult. Therefore, the nut must be
loosened somewhat to the left.

12
Figure 12

13
4. Drive chain tensioning
After a certain period of operation, the drive chain stretches; therefore it must be checked
frequently and tensioned, if required. It must be checked every 60 hours of operation.
Tensioning is done according to the following procedure (figure 13). First, remove the
protective sheet metal of the PTO shaft (pos. 1). Loosen both bolts (pos. 2) on the drive
housing (pos. 3). Then tighten the nut (pos. 5). Tighten the nut so long that the drive chain is
properly tensioned. Check this by hand –the chain must have a minimum oscillation. Tighten
both bolts (pos. 2) and replace the protective sheet metal of the PTO shaft with bolts (pos.
1).
5. Wire rope assembly
First, remove the triangular protective net on the winch column. Then rotate the cover (pos.
7, figure 12) and rotate the drum in a position, which enables unscrewing of the bolt on the
drum. Unscrew this bolt in a position, so that the groove on the drum is free. Insert the wire
rope in the guide of the upper pulley and direct it through the upper pulley to the rope
drum. Insert the rope in the groove and tighten the bolt (pos. 8). Then start to wind
according to the procedure, which applies to towing. Once the entire length of the wire
rope is wound, unwind it again and wind it again strongly according to the procedure,
which is described in the chapter “Wire rope unwinding” to prevent damage to the rope.

14
MAINTENANCE
LUBRICATION Before proceeding with maintenance work, shut down the
engine, remove the key and wait for all moving parts to stop.
There is a grease fitting on the winch, which enables greasing of the upper pulley and guide.
The second grease fitting is on the housing of the lower pulley. Greasing is required every 60
hours of operation.
Non-frequent greasing can cause wear of slide elements and consequentially a defect,
which is not subject to warranty terms!
Drive chain must be lubricated every 100 hours of operation. Lubricate it with spray for
lubrication of chains or special grease, which does not melt at high temperatures, because
the grease can come into contact with friction coating of the clutch.
Before lubrication remove protection of PTO shaft (pos. 1, figure 13) and lubricate this spot.
Remove the chain before lubrication. After finishing lubrication, replace the protective sheet.
If grease comes into contact with friction coating of the clutch due do improper and
excessive lubrication, this would mean a drastic reduction in towing force and
consequentially it would be required to replace the blades of the clutch, which cannot be a
subject of this warranty!
All other bearings on the winch are of closed type, therefore greasing is not necessary. PTO
shaft is lubricated according to manufacturer’s instructions.

15
REMOVAL OF FAULTS
Determined faults
Cause
Procedure for removal of
(malfunctions)
faults (trouble)
Insufficient
Grease on frictional padding
Replace clutches.
pulling force.
of the clutch.
Burnt frictional padding of the
Clean padding with
clutch.
sandpaper or grind
(thickness approximately 0.5
mm).
Improper setting.
Setting according to
instructions.
Worn frictional padding of the
Replace clutches.
clutch
Incorrectly installed clutch.
Install according to technical
documentation.
Insufficient brake
Improper setting.
Setting according to
force.
instructions for use.
Grease on the padding of the
Replace the brake belt.
brake belt.
Damaged brake belt.
Replace the brake belt.
Damaged brake mechanism.
Replace damaged parts.
Other.
Contact service company.
Wire rope cannot
Improper setting of pre-brake.
Setting according to
be pulled out
instructions.
or the pulling is
difficult.
Improper setting of brake
Setting according to
instructions.
Damaged or stuck wire rope
Pull out the rope with a
tractor and, if required, install
a new wire rope.
Damaged brake belt.
Replace the brake belt.
Brake handle is not in correct
Proceed according to
position.
instructions for use.
Damaged or corroded
Grease the engagement
engagement mechanism.
mechanism with WD spray
or, if required, replace the
engagement mechanism.
Other.
Contact service company.

16
Determined faults
Cause
Procedure for removal of
(malfunctions)
faults (trouble)
The winch pulls,
Improper setting.
Setting according to
despite the
instructions.
clutch being
disengaged.
Crossed, wound rope for control of
brake handle.
Installed the rope in parallel
manner.
Lever, connecting the brake
Check the lever.
handle, does not allow return
in disengaged position.
Damaged engagement
Repair or replace the
mechanism.
engagement mechanism.
Damaged winch drum.
Replacement or repair of the
drum.
Not enough clutch distance.
Setting according to
instructions.
Broken part of frictional
Replace clutches.
padding on the clutch.
Excessively tensioned drive
Chain setting according to
chain.
instructions.
The winch
Insufficiently tensioned drive
Tension the chain, as
makes noise with
chain.
described in the instructions.
operation.
Damaged or worn bearings.
Replace bearings.
explanation of nameplate
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

17
SPARE PARTS LIST
Forestry winches –35M / 40eco (Image 1)
Pos.
Title
Plan or standard number
35M
40eco
Nr. of
pcs
Nr. of
pcs
1
Frame var.
1
305.01.00.0
1
304.01.00.0
2
Lower pulley kpl.
1
5006.10.00.A
1
5006.10.00.A
3
Trailer coupling kpl.
1
502.12.20.0
1
502.12.20.0
4
Brake and clutch kpl.
1
335.05.30.0
1
335.05.30.0
5
Protections and other kpl.
1
305.13.00.0
1
305.13.00.0
6
Upper pulley kpl.
1
305.09.00.0
1
305.09.00.0
7
Drive shaft kpl.
1
305.08.00.0
1
305.08.00.0
8
Drum kpl.
1
305.05.20.0
1
305.05.20.0
9
CHAIN RK 12 A-1 (ASA 60)
WIP (71 link 1352,55mm)
1
1000280
1
1000280
10
CHAIN ASSEMBLY JOINT SG
12 A1
1
1003563
1
1003563
11
Screw M12x90 Zn
3
1000085
3
1000085
12
Nut M12 Zn
4
1000142
4
1000142
13
Washer M12 Zn
7
1000161
7
1000161

18
Image 1

19
Forestry winches –35M / 40eco (Image 2)
Pos.
Title
Nr. of pcs
Plan or standard number
1
Pre-brake screw
1
702.00.41.0
2
Brake wire 5,5 m kpl (red)
1
1000554
3
Clutch wire 6.5 m kpl. (black)
1
1004067
4
Small single pulley
1
502.00.40.0
5
Small double pulley
1
502.00.41.0
6
Small single pulley 2
1
502.00.42.0
7
Small double pulley, wide
1
502.00.43.0
8
Spacer tube
1
502.05.12.0
9
Pin 1
1
502.06.08.0
10
Brake bolt
1
502.06.12.0
11
Brake fork
1
502.06.15.0
12
Brake handle var.
1
502.06.20.0
13
Clutch lever spring
1
502.06.25.0
14
Lever plate 1
2
502.06.30.0
15
Brake sleeve
1
502.06.32.0
16
Brake compression spring
1
502.06.35.0
17
Brake bolt
1
502.06.41.0
18
Compression spring
1
702.69.00.0
19
Washer
1
1000363
20
Braking belt spring
1
502.06.07.1
21
Brake roller
3
502.11.15.0
22
Clutch lever spring
1
502.11.25.0
23
Automatic control mechanism actuator var.
1
502.11.30.0
24
Automatic control mechanism kpl.
1
502.50.00.0
25
Clutch handle var.
1
303.12.00.0
26
Brake band var.
1
305.06.00.0
27
Pad
2
305.06.04.0
28
Brake tubing
1
305.06.07.0
29
Screw hexagon M8x16
2
1003454
30
Control mechanism housing var.
1
502.50.02.0
31
Extension spring
1
502.34.01.0
32
Actuator housing 1
1
502.50.06.0
33
Return rod
1
502.50.09.0
34
Ball fi 8,7
2
1010486
35
Spring linchpin 6x40
1
1000208
36
Screw M8x70 Zn
1
1000042
37
Screw M8x55 Zn
1
1000041
38
Screw M6x35 Zn
1
1000040
39
Screw M8x20 Zn
4
1000051
40
Screw M8x25 Zn
2
1000052
41
Screw M10x45 Zn
1
1000075
42
Screw M8x60
1
1001147
43
Nut M8x60
7
1003460
44
Nut M6 Zn
1
1003712
45
Nut M10 Zn
1
1003461

20
46
Nut M10 Zn
1
1000141
47
Nut M12 Zn
2
1000142
48
Washer M8 Zn
5
1003473
49
Washer M8 Zn
1
1003471
50
Washer M16 Zn
1
1000183
51
Washer M8 Zn
1
1003465
Image 2