EVERY FOUR MONTHS
OR AFTER 500 HOURS
USE
OIL: Drain oil and refill up
to the right level using
SAE-30 motor oil.
(See figure J)
GENERAL MAINTENANCE
CLEANSING:
Keep the
inside and outside of the
compressor clean.
Replace oil regularly and
keep all the external
surfaces clean. A clean
inner side guarantees
good mechanical
efficiency and a clean
exterior allows
circulating air heat to
dissipate efficiently.
(See figure K).
SUCTION ACTION:
Put your hand lightly onto the filter admission
orifices. You will clearly hear the air suction. A deficient suction
suggests the air filter is blocked or the admission valves are
damaged. (See figure L).
PISTON RINGS:
The
sealing rings and the
oil-scraper ring shall be
inspected when the
motor is using oil in
excess. It indicates the
rings are worn and need
to be replaced. When
replacing rings or other
major components
always change oil.
These types of adjustments must be carried out
in a Truper Authorized Service center.
BEARINGS:
When reviewing or changing the piston rings, the
crankshaft bearings and the compressor rod must also be
checked to determine if they are worn, and replace them if
necessary.
TENSION SELECTOR
This compressor can work at 2 voltages (120 V~ or 220 V~);
therefore it has a voltage selector located in the interconnection
box of the motor. Depending on the supply voltage to which it
is connected, it is necessary to move the selector for a correct
start-up and future work of the compressor. Fig. M
PROTECTION AGAINST OVERLOAD
The compressor has thermal protectors Fig. N (red button for
power to 220 V~ and black button for power to 120 V~) that
prevent the motor from overheating. The engine shuts off when
the thermal protector is activated, in order to restore the engine
follow the following steps:
1.- Press the switch to ensure that the compressor is off.
2.- Allow the compressor to return at least 5 minutes.
3.- Press the thermal switch
4.- Lift the switch to turn on the compressor.
NOTE:
If the unit shuts down again, please contact a Truper
Authorized Service Center.
MOTOR TRANSMISSION PULLEY
Isolate power and remove the guard and belt. The pulley can be
removed using an extractor known as “Ouller”. Do not use a
hammer to hit the pulley and remove from the shaft. It could
damage the motor bearings.
MOTOR:
If the motor does not start or stops during operation
not necessarily means there is something wrong with the motor.
A “buzzing” motor may indicate:
a) Voltage drops in the feeding line or loose connections.
b) Leaks in the check valves causing counter-pressure from the
receptor.
c) Wrong starting procedure is being used (See Start up and
Automatic Operation).
d) Compressor pump is “stiff” due to lack of oil.
An apparently “dead” motor may indicate:
a) The thermal overload protection device was activated.
b) Power supply fuses blew.
c) Loose connection.
ELECTRIC DIAGRAM
K
M
N
5
J
L
AVISO
Brown cord
Blue cord
Lever switch
Red cord
B2 B4
A1 A3 A5
B6
Overload
Yellow switch
Gray cord
Overload
Orange cord
White cord
switch
black cord
Thermal protector for
220 V~ power
Thermal protector for
120 V~ power
