Specifications; Hydraulic Schematic - Textron Greenlee H4802 Serie Manual De Instrucciones

Specifications

Pole Tampers
Type of Hydraulic System .............................Open-center
Pressure Port ........................ 9/16–18 female SAE O-ring
Return Port ............................. 3/4–16 female SAE O-ring
Blows per Minute
@ 15 l/min (4 gpm) ................................................. 980
@ 19 l/min (5 gpm) ............................................... 1160
@ 23 l/min (6 gpm) ............................................... 1300
Noise Levels
L (sound power level) ....................................10 bels
WA
L (peak emission sound pressure) ...........103 dB
pCpeak
Vibration ..........................................................53.75 m/s
Length
H4802 ....................................................1524 mm (60")
H4802-1 ................................................2134 mm (84")
H4802-3 ................................................1830 mm (72")
H4802-5 ................................................1520 mm (60")
H4802-6 ................................................1524 mm (60")
Width .............................................................102 mm (4")
Mass/Weight
H4802 .................................................... 10.4 kg (23 lb)
H4802-1 ................................................ 12.7 kg (28 lb)
H4802-3 ................................................ 10.4 kg (23 lb)
H4802-5 ................................................... 10 kg (22 lb)
H4802-6 ................................................ 10.4 kg (23 lb)
Tamper Foot (kidney-shaped) ............... 64 mm x 203 mm
Hydraulic Power Source
Do not exceed the following hydraulic power source
maximums:
• Hydraulic flow: 23 l/min (6 gpm)
• Pressure relief: 138 bar (2000 psi)
• Back pressure: 13.8 bar (200 psi)
Failure to observe this warning could result in severe
injury or death.
Greenlee / A Textron Company
Type of Hydraulic System .............................Open-center
or closed-center
Flow
Minimum ............................................ 15 l/min (4 gpm)
Recommended ................................... 19 l/min (5 gpm)
Maximum ........................................... 23 l/min (6 gpm)
Filtration .............................................10 micron (nominal)
Pressure Relief Setting ........................ 138 bar (2000 psi)
Back Pressure (maximum*) .................. 13.8 bar (200 psi)
* 13.8 bar (200 psi) is the maximum agreed standard back pressure
for the HTMA (Hydraulic Tool Manufacturers Association).
Greenlee Utility tools will operate satisfactorily at this standard.
1. Maximum hydraulic fluid temperature must not
2
2. Hydraulic flow must not exceed 23 l/min (6 gpm).
3. Pressure relief valve setting must not exceed

Hydraulic Schematic

(2.5" x 8")
Recommended Hydraulic Fluids
Use any nondetergent, 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
6
H4802 Series Pole Tampers
exceed 60 °C (140 °F). A sufficient oil cooling
capacity 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
FLOW METER
PUMP
POWER SOURCE
4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
or closed-center
COOLER
T
TOOL
P