Repair Notes For Hydraulics - Fayat Group BOMAG BF 700 C S600 Service Manual

General – Repair notes for hydraulics

1.5 Repair notes for hydraulics

Please note
Before commissioning
24
Cleanliness is of utmost importance. Dirt and other
contaminations must strictly be kept out of the
system.
n
Connections and screw fittings, filler neck covers and their
immediate surrounding areas must be cleaned before removal.
n
Before loosening hoses, pipe lines etc. relieve all pressure
from the system.
n
During repair work keep all openings closed with clean plastic
plugs and caps.
n
Never run pumps, motors and engine without oil or hydraulic
oil.
n
When cleaning hydraulic components take care not to damage
any fine machined surfaces.
n
Chemical and rubber dissolving cleansing agents may only be
used to clean metal parts. Do not let such substances come in
contact with rubber parts.
n
Rinse of cleaned parts thoroughly, dry them with compressed
air and apply anti-corrosion oil immediately. Do not install parts
that show traces of corrosion.
n
Avoid the formation of rust on fine machined parts caused by
hand sweat.
n
Use new O-rings or seal rings for reassembly.
n
Use only hydraulic oil as sliding agent when reassembling. Do
not use any grease!
n
Use only the specified pressure gauges. Risk of damaging the
pressure gauges under too high pressure.
n
Check the hydraulic oil level before and after the work.
n
Use only clean hydraulic oil in strict compliance with the speci-
fication in the operating and maintenance instructions to fill the
hydraulic system.
n
Check the hydraulic system for leaks, if necessary find and rec-
tify the cause.
n
Before taking new hydraulic components into operation fill
these with hydraulic oil as specified in the operating and main-
tenance instructions.
n
After changing a hydraulic component thoroughly flush, refill
and bleed the complete hydraulic system.
n
Perform pressure tests at operating temperature of the
hydraulic oil (approx. 40 °C).
n
After the completion of all tests perform a test run and then
check all connections and fittings for leaks with the engine still
stopped and the hydraulic system depressurized.
n
Fill the housings of hydraulic pumps and motors with hydraulic
oil. Use only hydraulic oils according to the specification in the
maintenance instructions.
n
After changing a component flush the hydraulic system as
described in the flushing instructions.
BF 700 C S600