Uniforest 45H User manual

Instructions for use
FORESTRY WINCHES
45H/45Hpro/55H/55Hpro
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:
45H
12108000444
45Hpro
12208000437
55H
12314001080
55Hpro
12410003927

2
GENERAL
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.
Index:
GENERAL .............................................................................................................................2
1. Intended purpose............................................................................................................. 3
2. Technical data: ................................................................................................................ 3
INSTRUCTIONS FOR SAFE WORK ........................................................................................4
1. General: ............................................................................................................................ 4
2. Pto shaft ............................................................................................................................ 7
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 ...................................................................................................... 10
6. Winch controler .............................................................................................................. 11
7. The SMART 3in1 function ................................................................................................ 12
8. Limit switch ...................................................................................................................... 13
SETTINGS............................................................................................................................14
1. Clutch.............................................................................................................................. 14
2. Preliminary brake............................................................................................................ 14
3. Break................................................................................................................................ 15
4. Drive chain tensioning.................................................................................................... 16
5. Wire rope assembly ........................................................................................................ 16
6. Operation........................................................................................................................ 17
7. Adjusting the unwinding speed .................................................................................... 19
8. Adjusting the limit switch................................................................................................ 19
MAINTENANCE .................................................................................................................20
1. Control of hydraulic oil................................................................................................... 21
REMOVAL OF FAULTS........................................................................................................22
1. Winch............................................................................................................................... 22
2. Reeling machine ............................................................................................................ 25
ELECTRICAL EQUIPMENT...................................................................................................27
Version H+KS ....................................................................................................................... 27
Version Hpro, Hpro+KS........................................................................................................ 28
EC DECLARATION OF CONFORMITY ...............................................................................29
Spare parts list ..................................................................................................................30

3
1. Intended purpose
The machine is intended exclusively for normal work in the forest. Any other use outside of
this framework holds as unintended. This winch can only be used for pulling loads on the
ground. 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.
2. Technical data:
Unit
45H
45Hpro
55H
55Hpro
Connection
category
1,2
1,2
1,2
1,2
Pulling force
kN
45
45
55
55
Brake force
kN
56,25
56,25
68,75
68,75
Wire rope medium speed
m/s
0,60
0,60
0,60
0,60
Wire rope maximum
mm/m
9/150
9/150
10/120
10/120
10/120
10/120
11/105
11/105
mm/m
11/105
11/105
12/90
12/90
Wire rope length (serial)
mm/m
10/70
10/70
11/70
11/70
Tractor required power
kW
37-50
37-50
40-55
40-55
PS
50-68
50-68
54-75
54-75
kN
104,40
104,40
123,40
123,40
Rated strength
N/mm2
2160
2160
2160
2160
Width
mm
1400
1400
1590
□ 1800
1590
□ 1800
Depth
mm
490
490
490
490
Height without protective net
mm
1335
1335
1450
1450
Height with protective net
mm
2300
2300
2300
2300
Weight (without wire rope)
kg
395
421
409
435
Power take-off RPM
min-1
max. 540
max. 540
max. 540
max. 540
Unwinding device
□
■
□
■
□ Optional ■ Serial x Not possible
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
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.
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.

5
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 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 4).
Figure 3 Figure 4 Figure 5

6
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 continuously 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.
36. 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.
37. The hitch on the winch is designed as a work tool and should not be used on public
roads

7
Figure 6 Figure 7
2. Pto shaft
1. Only PTO shafts, which are prescribed by the manufacturer, can be used.
2. Cardan protection pipes and protection funnels and connection protection must
be installed, which must be in perfect condition.
3. With PTO shafts, be careful with prescribed pipe protection in transport and working
position.
4. Connect and disconnect the cardan only when the cardan power take off is
disengaged, the engine is stopped and the ignition key is removed.
5. Always be careful to install and secure the cardan correctly.
6. Protect the cardan protection from rotation with hang chain.
7. Before engaging the PTO shaft on the tractor, make sure that the chosen number
of revolutions and rotation direction comply with the requirements, given in the
technical data chapter.
8. Before engaging the PTO shaft, be careful that nobody is standing in the machine’s
danger zone, which applies also to operation.
9. PTO shaft must never be engaged, when the engine is stopped.
10. Put the disconnected PTO shaft on the foreseen holder.
Danger area
Tow rope
Tree
Triangle
area
Torn-off-pulley
Oscillating rope
Pulley

8
INSTRUCTIONS FOR USE
1. Description
The winch is a machine intended for storing chopped logs from the forest. Basic parts of
the winch are: welded housing, drive part, drum with shaft, clutch, brake, upper and
lower pulley and other smaller elements. Control is done by electro hydraulic system.
Clutch and brake are engaged by hydraulic cylinders. Pressure in the hydraulic part is
created by the hydraulic pump, which is driven by the PTO shaft. Hydraulic battery
maintains required pressure in the system even after the pump becomes still or the tractor
is shut down, which still enables to unwind the wire rope. Steering elements are powered
by electricity from the electrical socket at the rear of the tractor. The winch operates with
hydraulic pressure to maximum 160 bar.
Safety valve is factory set and the pressure is not allowed to be increased!
2. Required equipment of the tractor
- PTO shaft with chosen gear ratio, max. 540 RPM.
-Three-point hitch of I and II category.
- Electrical installation 12 V with socket on the rear of the
tractor.
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
45H/55H/55Hpro, 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!
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.
Electrical cable plug on the winch is connected to the socket on the tractor. Steering
console is connected to the socket on the winch housing. When using remote control,
receiver cable is connected to the socket, where the steering console used to be.

10
5. Wire rope unwinding
When the winch is properly connected, we can begin with unwinding of the wire rope.
On tractors without a socket with constant current of 12 V, we can connect a supply
cable in the socket, which is usually made for connection of light equipment on the trailer.
Because of this, we have to turn on the position lights.
On the steering console (figure 8), press the left button to release the brake. Hydraulic
cylinder shifts to position 1.
If we disengage pressure on the button in less than 3 seconds, the brake cylinder shuts
and the winch is again open and unwinding is not possible. If this button is pressed for
more than 3 seconds, the function shifts from “impulse” to “constant release” and despite
not holding the button, the cylinder stays in the open position and the winch in unwinding
function.
When unwinding, we have to be careful not to unwind the wire rope completely or leave
at least three winds on the drum. This distance is marked on the wire rope. Due to safety
reasons, the wire rope is installed on the drum so that if the logs start to slide without
control, the rope must “pull” itself off the drum. If the rope was pulled out with excessive
force, we can pull out the entire wire rope during pulling. In this case, replace it according
to the procedure, foreseen for wire rope installation. If the wire rope is very tight and we
wish to release it, we have to do it impulsively with quick presses 2-3 times on the left
button. This prevents the wire rope to unwind too quickly from the drum and that the wire
rope is not too loose. It also prevents the logs to slide downhill.

11
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.
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.
Figure 8
6. Winch controler
We can start pulling, when the winch is on the ground and properly strengthened. Apply
the hand brake on the tractor. If the PTO shaft is engaged and the hydraulic system
requires pressure, we can start pulling. Press the right button on the steering console (pos.
2, figure 8). The wire rope starts winding on the drum. When we release the button, the
winding stops.
If the unwinding of the wire rope does not stop immediately after releasing the button, the
winch is malfunctioning. Immediately stop work and contact service company, because
operating the winch in this case is deadly!
During pulling it is forbidden to lift the winch, because this can damage the connection
PTO shaft on the winch.
In case of ultra vires or danger of accident, immediately press the red button (pos. 3,) to
put the winch in a standstill.

12
7. The SMART 3in1 / TERRA function
If your winch is equipped with an unwinding device (Hpro version), it icludes the SMART
3in1/ TERRA function.
It can only be operated using a corresponding remote controller.
When the winch is started for the first time, use the manual console and test its operation.
Operation mode
After making sure that the winch operates properly by using the manual console, you can
test the winch with a remote control.
If the winch is not responding, your remote control is not suitable. In this case, replace the
remote control or put the winch into the classic mode. To do this, follow the procedure
below.
Classic mode
SMART 3in1
SMART 3in1 / TERRA
The unwinding device
activates after 1.5 seconds.
The unwinding device is
activated with an impulse –no
delay
Unwinding device turns on
with a pulse –without delay
We can see on the transmitter
whether the unwinding device
is active
To start unwinding the pulling
rope with the unwinding
device:
Hold the unwinding button for
at least 1.5 seconds.
To switch off the unwinding
device:
Release the unwinding
button.
To switch the unwinding
device back on:
Hold the unwinding button for
at least 1.5 seconds.
To switch on the unwinding of
the pulling rope:
Hold the unwinding button for
at least 1 second:
This activates the unwinding
process without the unwinding
device.
To switch on the unwinding
device:
Press the unwinding button.
To switch off the unwinding
device:
Press the unwinding button.
To switch off the unwinding of
the pulling rope:
Press the pulling button.
Switching on unwinding of wire
rope:
Hold the unwinding switch for
at least 1 second.
Unwinding function turns on
without unwinding device.
Switching on the unwinding
device:
Push the unwinding switch to
direction of unwinding –
permanently.
Switching off the unwinding
device:
Turn off the unwinding switch -
permanently
Switching off unwinding of wire
rope:
Press the pulling function
button.
med dvema intervaloma
vklopa in izklopa odvijalne
naprave vedno držite gumb
vsaj 1,5 sekunde.
odvijalna naprava se vključi v
trenutku ko pritisnete gumb za
odvijanje.
The unwinding device is
activated the moment you
press the unwinding function
button.

13
Figure 8a
Before switching off the SMART 3in1 function, turn of the tractor's engine and disconnect
the power supply to the winch.
Remove the protection on the winch (1, Figure 8a). Loosen the screws on the electric box
(2). Move the switch 1(TERRA), 2(SMART 3in1) on the switch panel to position OFF. Close
the box and tighten the screws (2). Install the protection (1) back onto the winch.
8. Limit switch
Your winch can also be equipped with a limit switch (optional equipment). It was
designed to automatically stop the pulling of the wire rope when the end of the rope
reaches its final position. The limit switch prevents damage to the wire rope and its guide
on the upper pulley.
1 2
1
ON
OFF
2
12

14
SETTINGS
Figure 9
1. Clutch
Before any modification on the winch, shut off the tractor engine!
Pulling force on the clutch is factory set and does not require to be changed. Due to
wear of friction surfaces, distance between clutches needs to be set after a certain
period. This is done once a year at usual work in the forest or after every 1000 m3 of pulled
out logs, but not before end of warranty period. Perform the setting by unscrewing the nut
(pos. 9, figure 11), which is the safety nut, to the left. Then, tighten the high nut (pos. 15,
figure 11) to the right. In this position, there is no distance between the clutches. Then,
unwind the nut for one turn to the left –this creates a gap between the lamellas of
approximately 4-5 mm. Retighten the safety nut (pos. 9, figure 11) to the right. This protects
the high nut from unwinding. Engage the motor and PTO shaft, pull out the rope and
begin controlling the adjustment. If, despite not engaging the right button for pulling, the
rope starts to move, then the distance between the clutches is too small. Increase it for
approximately 1 millimeter or repeat the setting procedure by unwinding the high nut for
¼ of a turn to the left. Engaging pulling is not allowed, if the nuts (pos. 9 and 15, figure 11)
are not installed on the shaft, because the hydraulic cylinder of the clutch gets damages,
because the maximum permitted travel is only 8 mm!
WARNING
For cylinder travel greater than 8 mm, oil can leak down the clutches.
2. Preliminary brake
With bolt (pos. 4, figure 11) and wing nut (pos. 5, figure 11) set the preliminary brake. By
rotating the bolt to the right, the brake force is increased, with rotating to the left, the
brake force is decreased. Then tighten the wing nut, which prevents the bolt to loosen
automatically. Proper setting ensures that the wire rope does not roll off the drum
automatically or excessively. This would cause loose winding and damage to the wire
rope at fast disburdening of the brake and unwinding. Preliminary brake is properly set
when unwinding of the rope is still possible without excessive effort. If you pull the rope
uphill, it is possible to additionally disburden the brake, so that rope towing is easier, the
bolt (pos. 4, figure 11) must be returned to its original position immediately after.

15
3. Break
At the end of pulling, the differential brake automatically engages. The brake is factory
set to the braking force, which is 25% higher than the rated pulling force of the winch. As
the braking padding is wearing down, the braking force is changing and you have to
reset it periodically. This is required when the brake does not hold the burden as
described in the beginning of this paragraph. The braking force is adjusted by loosening
or tightening the screw (pos. 2, figure 11) after you have loosened the locking nut (pos. 3,
figure 11). Tightening the screw (pos 2, figure 11 decreases the braking force, while
loosening increases it. After the adjustment is completed, tighten the locking nut (pos. 3,
figure 11). Correctly adjusted frictional brake in the engaged position prevents the burden
from sliding backwards, while in the disengaged position it allows for an uninterrupted
drawing of the rope from the winch.
Figure 10
Figure 11

16
4. Drive chain tensioning
After a certain period of operation (10 hours), the drive chain stretches; therefore it must
be checked frequently and tensioned, if required. It must be checked every 500 hours of
operation or once every year. Tensioning is done according to the following procedure
(figure 12)! First, disengage the PTO shaft and turn off the engine. Remove the protective
sheet of the PTO shaft (pos 1, figure 12). Loosen the nuts (pos 2 and pos 8, figure 12) which
fix the lower and upper drive (pos 3 and pos 9 figure 12). Then, unwind the safety nut (pos
12, figure 12) and using the screw (pos 13, figure 12) begin tensioning the longer chain
(pos 6). Turn this screw to the right until the chain is properly tensioned. The chain is
properly tensioned, when there is a swing of the chain for approximately 3-4 mm in
transversal direction. Then tighten the screw with the counter-nut (pos 12, figure 12) to
prevent the tensioner to get loosened. Now, securely tighten all four nuts on the lower
drive (pos 2, figure 12). Then begin tensioning the shorter chain (pos 7, figure 12). If the four
nuts (pos 8, figure 12) have been loosened beforehand, loosen the nut (pos 11, figure 12)
and begin turning the tensioning screw (pos 10, figure 12) in left direction. This increases
the distance between both housings. When the chain (pos 7, figure 12) is correctly
tensioned, retighten the nut (pos 11, figure 12). At the end, similarly retighten nuts (pos 8).
Figure 12
5. Wire rope assembly
First, remove the triangular protective net on the winch column. Then rotate the cover
(pos. 7, figure 11) and rotate the drum in a position, which enables unscrewing of the bolt
(pos. 8, figure 11)on the drum. 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.

17
6. Operation
The device begins unwinding the wire rope automatically, when you release the wire
rope or when the function for wire rope unwinding is set on the brake. The wire rope is
unreeling until you stop the unreeling function on the winch. After the machine is turned
on, the steering system ensures the engagement of the hydraulic cylinder in the
unwinding position. After three seconds, the oil flow is redirected to the hydraulic motor of
the upper pulley. The non-return valve, which is connected to the brake cylinder, enables
a stable position of this cylinder. When in use, all regulations for safe use of the winch must
be observed. Unwinding speed depends on the oil flow or the PTO shaft speed, which
must not exceed 540 revolutions per minute.
When the wire rope unreeling function is turned on, the speed of the wire rope is a bit
higher at the beginning. After a few meters, the speed decreases. This is completely
normal considering the system of operation.
Only the speed is decreased and not the force, which the wire rope is being unreeled
with from the drum.
Settings
After the assembly and testing, the machine is set. If the machine does not start
unwinding the rope, when you turn it on, you must adjust the settings.
Observe the following procedure to adjust the settings.
If the wire rope is not mounted on the drum tight enough, unreel it and reel it again
properly (use a load). To ensure a flawless operation of the reeling machine, the wire rope
must not be damaged (bent or torn).
When you start unwinding the wire rope, adjust the force of the safety brake on the drum,
so that the wire rope does not unwind on the drum (See instructions for using the winch,
Safety brake settings). Next you must set the pulling force of the small sheave (pos. 3,
figure 12a) on the larger sheave. If the rope is slipping on the larger sheave (2), increase
the force of the small sheave using the adjustment screws (4). In case the larger sheave
(2) is not spinning, decrease the pulling force of the small sheave (3) using the adjustment
screws (4).
If the reeling machine functions properly, you can increase the force of the safety brake
on the drum to ensure an even winding of the wire rope onto the drum. If you are using
an additional brake, it is important that during the reeling of wire rope on the drum
(unloaded rope –there is no load on the rope), the bigger sheave (2) is spinning together
with the wire rope (it should not be sliding). The settings are made according to the
above procedure.

18
Diameter of the wire rope
During the construction of the wire rope, certain parameters were considered which
should be taken into account while using it to assure a quality lifetime of the machine.
The radius of the wheel edge must be identical to the diameter of the wire rope. For
winches with different traction forces use the following wire ropes:
MODEL
45H
45Hpro
55H
55Hpro
WIRE ROPE
ø 10, ø 11
The use of a wire rope with an improper diameter can seriously impair the functionality of
the machine.
If the wire rope is damaged (torn, crumpled), it is practically impossible to unreel that part
of the wire rope. In such cases complaints do not comply.
Figure 12a
31
2
4

19
7. Adjusting the unwinding speed
The 55Hpro winch is equipped with a valve for adjusting the unwinding speed. With the
45Hpro winch, this is available as optional equipment.
The unwinding speed of the wire rope is adjusted according to the following procedure:
Figure 12b
-To increase the unwinding speed, rotate the valve
(5, Figure 12b) in the counter-clockwise direction.
-To decrease the unwinding speed, rotate the valve
(5) in the clockwise direction.
-If the valve (5) is turned all the way, the wire rope
stops unwinding.
8. Adjusting the limit switch
The limit switch is adjusted for operation after the assembly and test. In the event of
incorrect operation, a subsequent adjustment may be required.
Figure 12c
Before adjusting the limit switch, turn of the tractor's engine and disconnect the power
supply to the winch.
Remove the protection of the switch (6, Figure 12c). Unscrew the safety nut (7) on the limit
switch (8). Press on the sleeve (9) until it rests in its final position. Screw on the sensor (8)
until it reaches the surface of the sleeve (9). Unscrew the sensor (8) by one turn, so that
the distance between the sensor and the sleeve (9) is 1 mm.
Check the operation of the limit switch:
When the sleeve (9) is released, the sensor (8) is not active (the sensor lamp is off). Move
the sleeve (9) by 5 mm (the sensor lamp flashes). Press on the sleeve (9) until it reaches its
final position (the lamp is on).
If the sensor operates properly, fasten the cover of the sensor (6) back onto the rope
guide.
5
6
6
7
8
9
10

20
MAINTENANCE
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. The PTO shaft needs to be lubricated according to
instructions of the manufacturer.
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 200 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.
First, remove the PTO shaft protection. Clean the chain before lubrication.
Do not lubricate the part, where the grease can reach clutch with
application.
If grease comes into contact with friction coating of the clutch due do improper and
excessive lubrication, this would mean a drastic reduction in pulling 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.