GMT 050
User manual
2
Contents
1.
General ............................................................................................................................................................ 3
1.1
Use of this manual .................................................................................................................................. 3
1.2
Warnings and warning pictograms ......................................................................................................... 3
2.
Safety guidelines ............................................................................................................................................. 4
3.
Serial plate / Carrying vehicle .......................................................................................................................... 6
3.1
Serial plate .............................................................................................................................................. 6
3.2
Carrying vehicle ...................................................................................................................................... 6
4.
Preparation for use ......................................................................................................................................... 7
4.1
Transport ................................................................................................................................................ 7
4.2
Mounting the felling grapple .................................................................................................................. 8
4.3
Connecting the GMT050 TTC .................................................................................................................. 9
4.4
Installing the drain valve....................................................................................................................... 10
4.5
Installation on Telehandler ................................................................................................................... 11
4.6
Operating pressure ............................................................................................................................... 12
4.6.1
Hydraulic schematic for mounting ............................................................................................... 12
4.6.2
Hydraulic schematic for mounting GMT050 TTC ......................................................................... 13
4.6.3
Hydraulic schematic ..................................................................................................................... 14
5.
Application .................................................................................................................................................... 15
5.1
Application GMT050 ............................................................................................................................. 15
5.2
Application GMT050 TTC ...................................................................................................................... 16
5.3
Operation of the felling grapple ........................................................................................................... 17
5.3.1
Felling a tree or branch ................................................................................................................ 18
5.3.2
Felling a tree or branch with TTC ................................................................................................. 20
5.4
Supplied tools ....................................................................................................................................... 22
4.3
Lifting reference for sawing at height .................................................................................................. 22
6.
Maintenance ................................................................................................................................................. 24
6.1
Safety recommendations ..................................................................................................................... 24
6.2
Daily maintenance ................................................................................................................................ 24
6.3
Maintenance schedule ......................................................................................................................... 25
6.4
Repairs / Welding ................................................................................................................................. 25
6.5
Replacement of saw bar and chain ...................................................................................................... 26
6.6
Lubricants ............................................................................................................................................. 27
6.7
Hydraulic fluid ....................................................................................................................................... 28
6.8
Chain oil ................................................................................................................................................ 28
6.9
Handle the chainsaw ............................................................................................................................ 29
7.
Adjusting the felling grapple ......................................................................................................................... 30
7.1
Pressure adjustments ........................................................................................................................... 30
7.1.1
Adjusting the valve block ............................................................................................................. 30
7.1.2
Pressurizing the accumulator ...................................................................................................... 35
7.1.3
Saw blade speed .......................................................................................................................... 37
7.1.4
Braking force of the TTC .............................................................................................................. 37
7.2
Saw safety guidelines ........................................................................................................................... 38
8.
Removal of grapple ....................................................................................................................................... 38
9.
Troubleshooting guide .................................................................................................................................. 39
9.1
General ................................................................................................................................................. 39
9.2
Checklist................................................................................................................................................ 39
9.3
Common malfunctions ......................................................................................................................... 39
9.3.1
Sawing problems .......................................................................................................................... 39
9.3.2
Problems with tilt up, placing grapple in horizontal position ...................................................... 40
9.3.3
Problems with tilt down, placing grapple in default position ...................................................... 40
10. Technical specifications ................................................................................................................................. 41
10.1
GMT050 ................................................................................................................................................ 41
10.2
GMT050 TTC ......................................................................................................................................... 42
