Truper COMP-120LV Instructivo página 19

H
Oil spyhole (M) Crankcase drain
plug (L)
GENERAL MAINTENANCE
I
SUCTION ACTION: Put your hand lightly onto the lter admission
ori ces. You will clearly hear the air suction. A de cient suction
suggests the air lter is blocked or the admission valves are damaged.
(See gure J).
J
NOTE 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.
OVERLOAD PROTECTION: The compressor is built with overcurrent
protector that prevents the motor from excessive heating. The engine
shuts down when the switch is activated (See gure K), to reset the
engine, follow these steps:
1.- Press the switch to ensure that the compressor is off.
2.- Let the compressor cool down for at least 5 minutes.
3.- Press the thermal switch located on the upper cover of the engine.
4.- Lift the switch to start the compressor.
NOTE: If the unit shuts down again, please go to a Truper Authorized
Service Center.
EVERY FOUR MONTHS OR
AFTER 500 HOURS USE
OIL: Remove the screw (L)
to drain the oil from the
crankcase. Reinstall the
screw carefully, taking care
not to damage the gasket.
Oil should be added to the
crankcase until it reaches
the level shown by the red
circle on the sight glass (M)
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 ef ciency
and a clean exterior allows
circulating air heat to
dissipate ef ciently. (See
gure I).
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.
K
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
CW
V2
Z2 U2
~V
C2
Z1
U1
V1
C1
7
ENGLISH