General instructions
Follow these general procedures when servicing PVG 32 valves:
Avoid injuries or material damage
Plan the process thoroughly. Block wheels and other moving parts to prevent undesired movement.
Secure against leakage of hydraulic fluid. Hydraulic fluid can cause contamination, cause burns due to
temperature and other injuries due to high pressure. Follow all instructions from machine builder.
Keep it clean
Cleanliness is the primary mean of assuring long lifetime for the application. Clean the outside of the
valve thoroughly before any disassembly. Cap ports and hoses when opening. Avoid contamination by
both dirt and chemical agents. Clean parts using a clean solvent wash and air dry.
Replace all O-rings and gaskets
Danfoss recommends inspection of O-rings and gaskets and replacement if wear or contamination
could be relevant. Dried out O-rings and gaskets must be replaced.
Safety precautions
Always consider safety precautions before beginning a service procedure. Protect yourself and others
from injury. Follow instructions from machine manufacture carefully. Read and include the warnings from
the relevant PVG literature in your work planing.
W
Warning
Ensure stable conditions
Manipulation on a mechanical, hydraulic and electrical system can potentially create dangerous
situations. Please ensure that all necessary precautions are taken to prevent dangerous situations.
W
Warning
Release hydraulic pressure in system
Shut down pump and release pressure in all work functions, in tank and pilot pressure if not released by
previous operations
W
Warning
Disengage electrical system
Disengage power supply and system control. If relevant for application, disengage system output e.g.
error pin, direction indicator.
Service Manual
PVE Series 7
General Information
8 |
©
Danfoss | August 2017
AX00000348en-US | 0101
