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REPARATION OF PRODUCTS UNDER WARRANTY
IF THE TOOL IS 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.
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.
PROBLEM / CAUSE / SOLUTION CHART
The following table is a guide for finding and solving the most common working problems. The causes of
malfunction often depend on inadequate values of the hydraulic circuit. The control of the PRESSURE-
must be done with oil at a temperature of
about 40° C.
PROBLEM:
THE ENGINE DOES NOT START
CAUSE
SOLUTION
Engine switch is in OFF
Bring on ON
Fuel tap on OFF
Engine failure
Bring on ON
Check and/or repair
No fuel
Low engine oil level
Add fuel
Add oil engine
Hydraulic valve lever in working position
In P1 or P2
Put lever in OFF CENTRAL position
