Specifications; Hydraulic Schematic - Greenlee 38568 Manual De Instrucciones

Specifications

Long-Reach Chain Saw
Type of Hydraulic System .............................Open-center
Hydraulic Ports
Pressure ...............................9/16–18 SAE O-ring Boss
Return.....................................3/4–16 SAE O-ring Boss
Cutting Capacity ......................................... 330 mm (13")
Chain Speed @ 30 l/min (8 gpm) ...................1280 m/min
Sound Power Level ............................................. 106 L
Vibration ............................................................4.88 m/s
Mass/Weight
38568 .................................................. 3.94 kg (8.75 lb)
43177 .................................................. 4.05 kg (9.00 lb)
43178 .................................................. 3.71 kg (8.25 lb)
Length
38568 ................................................. 1890 mm (74.5")
43177 ................................................. 2200 mm (86.5")
43178 ................................................. 1590 mm (62.5")
Width (at motor) ....................................... 108 mm (4.25")
Depth of Body (at handle) ............................ 152 mm (6")
Saw Chain
When replacement is necessary, select a saw chain
that:
• meets applicable industrial safety code
specifications
• is rated for 1280 m/min (4200 ft/min)
Failure to observe this warning could result in severe
injury or death.
Pitch ..................................................... 8.26 mm (0.325")
Gauge ................................................... 1.47 mm (0.058")
Hydraulic Power Source
Do not exceed the following hydraulic power source
maximums:
• Hydraulic flow: 30.3 l/min (8 gpm)
• Pressure relief setting: 138 bar (2000 psi)
• Back pressure: 13.8 bar (200 psi)
Failure to observe this warning could result in severe
injury or death.
Greenlee
Type of Hydraulic System .............................Open-center
or closed-center
Flow
Minimum ..........................................18.9 l/min (5 gpm)
Recommended .................................22.7 l/min (6 gpm)
Maximum .........................................30.3 l/min (8 gpm)
Filtration ............................................ 10 micron (nominal)
Pressure Relief Setting ........................ 138 bar (2000 psi)
(4200 ft/min)
Back Pressure (maximum)* .................. 13.8 bar (200 psi)
wa
* 13.8 bar (200 psi) is the maximum agreed standard back pressure
for the HTMA (Hydraulic Tool Manufacturers Association).
2
Greenlee Utility tool will operate satisfactorily at this standard.
1. Maximum hydraulic fluid temperature must not
2. Hydraulic flow must not exceed 30.3 l/min (8 gpm).
3. Pressure relief valve setting must not exceed

Hydraulic Schematic

Recommended Hydraulic Fluids
Use any non-detergent, petroleum-based hydraulic
fluid which meets the following specifications or HTMA
specifications.
S.U.S. @:
38 °C (100 °F) ...............................................140 to 225
99 °C (210 °F) ............................................ 40 minimum
Flash Point ................................170 °C (340 °F) minimum
Pour Point ..................................-34 °C (-30 °F) minimum
8
Long-Reach Chain Saws
exceed 60 °C (140 °F). A sufficient oil cooling capac-
ity is needed to limit the hydraulic fluid temperature.
Install a flow meter in the return line to measure the
rate of hydraulic flow before using the tool.
138 bar (2000 psi) at your tool's maximum flow.
Locate the pressure relief valve in the supply circuit
to limit excessive hydraulic pressure to the tool.
FILTER
(10 MICRON)
RELIEF
VALVE
138 bar
RESERVOIR
(2000 psi)
CONTROL
VALVE
PUMP
POWER SOURCE
4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
or closed-center
COOLER
T
TOOL
FLOW METER
P