HERCULANO
– ALFAIAS AGRÍCOLAS, S.A
.
APARTADO 1 – 3720-051 Loureiro OAZ – Oliveira de Azeméis – Portugal
Tel.: (351)256 661 900 Fax: (351)256 692 497 e-mail:
Internet: www.herculano.pt
30
13.
BREAKDOWNS
PROBLEM
POSSIBLE CAUSE
POSSIBLE SOLUTION
T
IP
P
IN
G
THE TRAILER / SEMI-
TRAILER
- Does not tip!
Broken hoses / leaking accessories;
Replace with new hose
Quick release valve incorrectly connected to
the tractor;
Check the connection to the tractor.
Disconnect the quick release valve and
reconnect it.
Low oil levels in the tractor;
Check the tractor’s oil levels. Add oil if
necessary.
- Oil leak in the tipping cylinder;
- Leaky seals;
Replace seals / seal kit
(Assistance).
Malfunction of the tractor's hydraulic circuit.
Check the tractor's hydraulic circuit.
- Too much tipping!
Oil cut-off valve does not work, or works too
late.
Check that the cable that activates the
valve is correctly connected / adjusted.
L
IG
H
T
IN
G
S
Y
S
T
E
M
LACK OF LIGHTING:
In the Trailer / Semi-trailer
Bulb(s) blown;
Replace with a new bulb with the same
power.
The Trailer / Semi-trailer’s electrical plug for
the lighting system is not connected to the
tractor;
Connect the plug to the socket on the
tractor.
Cable cut or poor contact in the plugs.
Inspect the plugs and electric cables.
LACK OF LIGHTING:
In the 2nd trailer
Bulb(s) blown;
Replace with a new bulb with the same
power.
The electrical plug is not connected to the
trailer / semi-trailer;
Connect the plug to the socket on rear
coupling of the Trailer / Semi-trailer.
Cable in the 2nd trailer cut or poor contact
in the plugs.
Inspect the plugs and electric cables.
H
Y
D
R
A
U
L
IC
B
R
A
K
IN
G
S
Y
S
T
E
M
THE TRAILER / SEMI-
TRAILER
- Poor braking!
- Brake pads with considerable wear;
The axle’s brake handle requires
adjustment or replacement of brake pads.
THE TRAILER / SEMI-
TRAILER
- Brake does not work!
- Hydraulic circuit hose disconnected;
- Low oil in the tractor
- Oil leak in hoses or in hydraulic cylinders
on the axles;
- Brake pads completely worn.
- Connect the appropriate hydraulic hose
to the tractor;
- Check the tractor’s oil level;
- Replace hydraulic hoses or cylinders;
- Replace the brake pads.
THE TRAILER / SEMI-
TRAILER
- Excess braking!
- New pads
The axle’s brake handle requires
adjustment.
P
N
E
U
M
A
T
IC
B
R
A
K
IN
G
S
Y
S
T
E
M
THE TRAILER / SEMI-
TRAILER
- Excess braking!
ALB valve incorrectly adjusted;
Requires adjustment / assistance;
THE TRAILER / SEMI-
TRAILER
- Poor braking!
- Brake pads with considerable wear.
- Possible air leaks in the pneumatic system
- connection hydraulic hoses or vessel
membranes damaged;
- ALB valve incorrectly adjusted;
- Pressure in the tractor’s pneumatic system
lower than 6.5 bar;
- Replace brake pads;
- Replace components suffering from air
leaks;
(Assistance)
THE TRAILER / SEMI-
TRAILER
- Brake does not work!
- Lack of air in the control line; Yellow
pneumatic socket (ISO 1728) disconnected.
Connect the hydraulic hose to the tractor’s
socket;
- ALB valve incorrectly adjusted;
Requires adjustment / assistance.
Brake pads completely worn.
Replace the brake pads;
- Vessel membranes damaged
Replace membranes / assistance
TRAILER / SEMI-TRAILER
- Brakes always on!
- Lack of air in tanks
- Red and/or yellow socket disconnected
(ISO 1728);
- Lack of air downstream from the tank;
- Connect the sockets;
- Fill the compressed air tanks;
(Assistance).
D
R
A
W
B
A
R
H
Y
D
R
A
U
L
IC
J
A
C
K
THE HYDRAULIC CYLINDER
- Does not extend; Does not
retract;
Drawbar hydraulic cylinder hydraulic hoses
disconnected;
Connect the respective hydraulic hoses to
the Tractor;
- Stopcock closed.
Ensure that the hose is properly connected
to the tractor. Once this is done, open the
stopcock.
- Cylinder seals damaged
Replace seals or seal kit
(Assistance).
Summary of Contents for G2ET 10000
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