REPAIR
DISASSEMBLY – INSPECTION OF THE PARTS – REASSEMBLY
DOA HYDRAULIC TOOLS ARE PROFESSIONAL PRODUCTS THAT SHOULD BE REPAIRED ONLY BY
QUALIFIED PERSONNEL.
THE TOOL REPAIR MAY REQUIRE TECHNICAL LITERATURE AND INSTRUMENTS FOR THE
CONTROL OF THE HYDRAULIC VALUES AND AN ADEQUATE HYDRAULIC SOURCE NECESSARY
FOR CARRYING OUT THE TOOL FUNCTIONING TESTS.
IT IS THEREFORE ADVISABLE NOT TO START THE COMPLETE DISASSEMBLY OF THE PRODUCT
IF YOU ARE NOT A TECHNICIAN AND IF PROFESSIONAL TOOLS AND EQUIPMENT ARE NOT
AVAILABLE
REPAIR OF PRODUCTS UNDER WARRANTY
IF THE PRODUCTS ARE STILL UNDER WARRANTY, THE REPAIRS MUST BE
CARRIED OUT ONLY BY DOA AUTHORIZED SERVICE AGENTS OTHERWISE THE
WARRANTY WILL BE AUTOMATICALLY NULLIFIED.
GENERAL INFORMATION
Although we recommend that the repairs have to be carried out only by authorized DOA service
agents, some minor repairs can be carried out also by other engineers, in this case follow these
instructions:
BEFORE DISASSEMBLY
•
Clean accurately the product and remove any trace of dirt and solidified concrete.
•
Keep available a clean working surface, paper, rags, tools, an air gun, a rubber hammer, a
brass punch, a vice with soft protection for the jaws, a clean container for collecting the tool oil.
•
Keep available an exploded view of the tool and part list.
•
Consider that when the tool is completely disassembled, it’s recommended to replace all
exposed seals.
OFTEN THE CAUSE OF FAILURE IS NOT DUE TO PROBLEMS OF THE HYDRAULIC TOOLS, BUT TO
PROBLEMS OF THE HYDRAULIC CIRCUITS WHICH COULD NOT HAVE PRESSURE AND FLOW
CORRECT VALUES. IF YOU SUPPOSE THIS, DO NOT DISASSEMBLE THE TOOL, DO NOT MAKE
EXPERIMENTS AND CONTACT THE NEAREST AUTHORIZED DOA CENTRE.
