Tabla de contenido
Publicidad
Idiomas disponibles
Idiomas disponibles
Table of Contents
Description .................................................................... 2
Safety ............................................................................ 2
Purpose of this Manual ................................................. 2
Other Publications ......................................................... 2
Important Safety Information ..................................... 3-5
Identification .................................................................. 6
Specifications ............................................................. 6-7
Hoses and Fittings ........................................................ 8
Hose Connections ......................................................... 8
Operation ....................................................................... 9
Maintenance ................................................................ 10
Troubleshooting ........................................................... 11
Español ........................................................................ 13
Français ....................................................................... 25
Deutsch ....................................................................... 37
Italiano ......................................................................... 49
Illustrations and Parts Lists .................................... 60-64
Description
Greenlee Utility Remote Control Valves are compact,
lightweight, high-pressure valves rated for a maximum
of 700 bar (10,000 psi) of hydraulic pressure. They
are intended to provide control for hydraulic tools that
operate on Open-Center hydraulic systems.
The PVA0021 is for single-acting tools and features a
3/8" coupler. The PVA0022 is for double-acting tools
and has 1/4" couplers.
These four-way valves have three operating positions:
Advance, Neutral, and Retract. A special hold feature
locks the tool in its stroke when the lever is in the
neutral position.
To reduce operator fatigue, they feature an automatic
spring-returned lever. This provides automatic shut-off
and returns the valve to neutral when the hydraulic sys-
tem's operating pressure is achieved, or when the tool is
at the end of its stroke.
For operator safety, Greenlee Utility remote control
valves include a ground dump relief valve in the valve
return circuit. This relief valve will automatically open
if the return couplers are not connected properly. The
ground dump relief pressure for each model is listed in
under Specifications.
In addition, the PVA0022 has an internal relief valve
that limits the tool retract pressure. This feature pro-
tects tools that cannot withstand a return-side pressure
greater than:
• 345 bar (5000 psi)
Greenlee / A Textron Company
Safety
Safety is essential in the use and maintenance of
Greenlee Utility tools and equipment. This instruction
manual and any markings on the tool provide informa-
tion for avoiding hazards and unsafe practices related to
the use of this tool. Observe all of the safety information
provided.
Purpose of this Manual
This manual is intended to familiarize all personnel with
the safe operation and maintenance procedures for the
following Greenlee Utility valves:
Keep this manual available to all personnel.
Replacement manuals are available upon request
at no charge at www.greenlee.com.
Other Publications
Tool Owners/Users
SAE Standard J1273 (Hose and Hose Assemblies):
Greenlee Utility Authorized Service Centers
Service Manual: Publication 99912872
All specifications are nominal and may change as design
improvements occur. Greenlee Textron Inc. shall not be liable for
damages resulting from misapplication or misuse of its products.
KEEP THIS MANUAL
2
PVA0021 • PVA0022
PVA0021
(42948)
PVA0022
(42949)
Publication 99930323
4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
Publicidad
Capítulos
Tabla de contenido
