forstreich maschinebau TR 24 User manual

Operating Instructions
Felling Wedge TR 24
Content
1 Technical Data ......................................................................................................................1
2 Area of Application –Designated Use..................................................................................1
3 Safety Instructions................................................................................................................2
4 Warranty...............................................................................................................................2
5 Application............................................................................................................................3
6 Maintenance/Testing ...........................................................................................................4
7 Tips........................................................................................................................................4
8 Exploded View ......................................................................................................................5
9 EC Declaration of Conformity...............................................................................................6

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1 Technical Data
Designation
Mechanical Felling Wedge TR24
max compressive force (t)
8
mass (kg)
2.8
length (mm)
350
width (mm)
80
height (mm)
73
stroke/revolution (mm)
5
max torque (Nm)
80 Nm
2 Area of Application –Designated Use
The mechanical felling wedge TR24 is used in logging as a replacement for strenuous wedge
work or as an alternative to the hydraulic felling wedge.
Advantages over classic wedge work:
-vibration-free wedging
-“toppling” the tree is ergonomically cheap and easy on the joints
Advantages over hydraulic felling wedges:
-light weight
-easy maintenance
-good ergonomics with telescopic ratchet
This device does not replace wire ropes and winches. Only use it if you believe that the tree
could be felled with classic wedges. Do not try to fell trees with the mechanical felling wedge
that have a pronounced side or back lean in order to avoid overloading the device. Make
sure you are familiar with this device before you use it.
If the mechanical felling wedge is
not used as intended
overloaded
not or poorly maintained
the manufacturer will assume no liability for damages incurred.

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3 Safety Instructions
Danger: Failure to follow instructions may result in severe
injuries or even death!
Always work with normal plastic or aluminum wedges for support. Make sure to
keep feeding in the wedges when operating the mechanical felling wedge.
The maximum torque for the mechanical felling wedge is 80 Nm. Apply no more than
31 kg manual force to the extended telescopic ratchet (approx. 580 mm lever length)
to avoid overloading the spindle.
This device does not replace wire ropes and winches. Only use it if you believe that
the tree could be felled with classic wedges. Do not try to fell trees with the
mechanical felling wedge that have a pronounced side or back lean in order to avoid
overloading the device. Make sure you are familiar with this device before you use it.
Do not forcibly drive the mechanical felling wedge TR24 into the felling cut. You
might damage the hexagon head and nut.
Do not push or hit the felling wedge. This could bend the threaded spindle.
4 Warranty
We provide a warranty on the function and flawlessness of the material for 12 months
starting from the date of delivery for the mechanical felling wedge TR24. This does not cover
the consequences of normal wear and tear, overloading, improper treatment, or the
installation of foreign spare parts.
A warranty can only be provided if the device has been submitted to us in one piece without
tampering for testing. Damage caused by material or manufacturing faults will be repaired or
replaced free of charge.

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5 Application
Felling:
Set the supplied flexible head ratchet to a right rotation. The wedge can be driven in until
the threading on the outside is no longer visible and the telescopic ratchet touches the nut.
Wedge retrieval:
Set the supplied flexible head ratchet to a left rotation. Wind the wedge back until it touches
the nut.
Felling a tree of normal strength:
-Apply a proper felling technique in accordance with the good, professional practice of
forest work.
-Place classic wedges in the saw cut to keep it open.
-Use the saw to widen the cut at the top and bottom before applying the mechanical
felling wedge TR24.Make sure it fits cleanly into the felling cut with all “barbed
hooks”. Both spring steel plates must engage the wood evenly.
-Place the mechanical felling wedge TR24 horizontally into the saw cut (if the wedge is
inserted diagonally up or down, this can lead to increased wear and fatigue).
-Carefully drive the wedge into the saw cut using the ratchet until the tree starts to
fall.
-Keep feeding the classic wedges for support while driving the felling wedge TR24
further into the cut.

4
6 Maintenance/Testing
Please observe the maintenance instructions:
-The mechanical felling wedge TR24 must undergo a visual inspection for damages
before each use.
-Make sure that the threaded spindle/nut is sufficiently lubricated before each use.
Lubricate the threaded spindle/nut at the grease nipple provided for this purpose
and rotate the spindle once both ways.
The nut must be checked regularly for wear.
-Make sure that the surfaces between wedge and spring steel plates are lubricated
before each use. This way, the wear is lessened and the applied force necessity of
the operator significantly reduced.
-Keep the mechanical felling wedge clean at all times to increase its service life.
-Only original spare parts may be used. Contact your local dealer for more
information.
- The following lubricant was used for the initial lubrication:
Fuchs Gleitmo 805 –white high-performance lubricant for long-term lubrication
7 Tips
-Regularly switching the two steel plates is recommended to account for the loads
varying between top and bottom due to askew placement. Thus, creating less bend
in the spring steel plates.
-If the spring steel plates are bent, they can simply be set by hand.

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8 Exploded View

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9 EC Declaration of Conformity
Manufacturer: Forstreich-Maschinenbau
Prop. Stefan Reichenbach
Schwarzwaldstr.314
79117 Freiburg
Phone: [phone]
hereby declares that the following product:
Product description: mechanical felling wedge TR24
Year of manufacture: as of 05/2019
complies will all the relevant regulations of the Machinery Directive (2006/42/EC).
The following harmonized standards apply:
EN ISO 12100 Safety of machinery –General principles for design
Risk assessment and risk reduction
Freiburg, May 16th, 2019
Date Signature

As of 05/19
Subject to technical changes