60-34
®
SERVICE- HYD PUMP T6, T7 VANE
(continued...)
3. TROUBLESHOOTING
1.
No flow, no pressure
b) Is the rotation in the
correct direction?
d) How are the inlet
conditions?
g) Is the receptor working
correctly?
c) Is the air bleed-off
done?
f) Is the pump flow not
going somewhere else?
a) Is the pump rotating?
e) Is the Viscosity not too
high?
h) Is the speed high
enough?
a-1) Check if the coupling is rotating. If not, check the
rotation of the electric motor.
c-1) Check that no air is still located in the pressure line.
Loosen a connector.
h-1) Check if the minimum speed is reached. Mobile
pumps require 400 rpm and industrial pumps require 600
rpm.
f-4) check if the check valve is not mounted «upside
down».
d-2) Check the oil level.
b-1) Check if the rotation of the pump corresponds to the
arrow on the name plate.
d-3) Check if the inlet hose in the tank is under the oil tank
level.
d-4) Check if an air intake is not disturbing the inlet
(missing inlet flange seal, air trapped in suction line as
examples).
d-5) Check if the pump is not located too high above the
oil level.
d-6) Check if the tank is not completely sealed. Then the
lack of atmospheric pressure will not allow the pump to
prime.
f-3) Check if in the directional valves the spools are not
sticking in a position that brings the flow back to the tank.
d-7) Check if all connections and seals are air-tight.
g-1) Check if the motor does not let all the flow leak
internally.
b-2) Check if the wiring of the electric motor is correct.
f-2) Check if the main relief valve is not set at an extremely
low pressure and therefore bringing all the flow back to the
tank.
a-2) Check the keys of the pump and E motor shaft.
e-1) Check if the oil characteristics are not incompatible
with the temperature and the pumps requirements. Too
high Viscosity will ''stick'' the vein fluid and enable the
pump to suck the oil correctly.
f-1) Check the hydraulic circuit and the main sequences.
Doing so, you will check if all the valves are set or work
properly.
d-1) Check if the inlet gate valve is not closed.
a-3) Check if the shaft is not broken.
g-2) Check if the cylinder inner seals are not ruined.
06/05/2019
Updated
SERVICE
Summary of Contents for 830B
Page 4: ...THIS PAGE INTENTIONALLY BLANK SUPERIOR WI USA www barko com...
Page 42: ...THIS PAGE LEFT INTENTIONALLY BLANK...
Page 48: ...THIS PAGE LEFT INTENTIONALLY BLANK...
Page 50: ...THIS PAGE LEFT INTENTIONALLY BLANK...
Page 54: ...THIS PAGE LEFT INTENTIONALLY BLANK...
Page 60: ...THIS PAGE LEFT INTENTIONALLY BLANK...
Page 70: ...THIS PAGE LEFT INTENTIONALLY BLANK...
Page 94: ...THIS PAGE LEFT INTENTIONALLY BLANK...
Page 102: ...THIS PAGE LEFT INTENTIONALLY BLANK...
Page 104: ...THIS PAGE LEFT INTENTIONALLY BLANK...
Page 114: ...THIS PAGE LEFT INTENTIONALLY BLANK...
Page 118: ...THIS PAGE LEFT INTENTIONALLY BLANK...
Page 124: ...THIS PAGE LEFT INTENTIONALLY BLANK...
Page 133: ...THIS PAGE LEFT INTENTIONALLY BLANK...
Page 134: ...THIS PAGE LEFT INTENTIONALLY BLANK...
Page 138: ...THIS PAGE LEFT INTENTIONALLY BLANK...
Page 172: ...THIS PAGE LEFT INTENTIONALLY BLANK...
Page 181: ...THIS PAGE LEFT INTENTIONALLY BLANK...
Page 182: ...THIS PAGE LEFT INTENTIONALLY BLANK...
Page 184: ...THIS PAGE LEFT INTENTIONALLY BLANK...
Page 194: ...THIS PAGE LEFT INTENTIONALLY BLANK...
Page 207: ...THIS PAGE LEFT INTENTIONALLY BLANK...
Page 208: ...THIS PAGE LEFT INTENTIONALLY BLANK...
Page 210: ...THIS PAGE LEFT INTENTIONALLY BLANK...
Page 215: ...THIS PAGE LEFT INTENTIONALLY BLANK...
Page 216: ...THIS PAGE LEFT INTENTIONALLY BLANK...
Page 217: ...THIS PAGE LEFT INTENTIONALLY BLANK...