Johnson Pump F4B-19 12/24 V DC Manual De Instrucciones página 8

ENGLISH
Freezing weather
Drain unit by loosening the endcover.
Glycol based anti-freezes can be used
but do not use petroleum based anti-
freeze compounds.
Service instructions
(see page 22-23)
Disassembly
1. Back off the endcover screws (7),
remove the endcover (5) and
O-ring (6).
2. Pull out the impeller (3) using a slip
joint plier.
3. Back off and remove the nuts (8)
and washers (9) holding the body.
Separate the body from the motor.
4. Remove the lip seal (4).
5. Do not disassemble the motor.
Assembly
1. Moisten the new lip seal with
soapy water (5% soft soap), mount
the seal with the lip facing towards
the impeller.
2. Lubricate the motor shaft with
vaseline of the like. Fit the body to
the motor.
3. Lubricate inside the pump body
where the impeller should be
placed with vaseline or the like.
Also lubricate the surface of the
endcover.
4. Fit the impeller with a rotating
movement in the intended
direction of the pump rotation.
5. Lubricate the O-ring with vaseline
or the like and fit it in its position
and fasten the endcover.
Impeller
The impeller is a very important
security device and should be replaced
every year with a Johnson original
impeller.
8
Accessories
Vacuum switch 09-45053
• For automatic shut off operation.
• To prevent pump damage.
The vacuum switch works with all self-
priming impeller pumps and should be
used for e.g. bilge pumping/emptying
of tanks to prevent the pump from
running dry.
The vacuum switch automatically shuts
the pump off when the bilge/tank is
dry. With the switch fitted, you can
start the pump by remote push button
or manually by depressing lever on the
switch.
The switch is not
ignition protected.
Deckwash kit 09-46533
For convenient deckwash:
• pressure switch
• check valve
• triggel nozzle
offered by Busse-Yachtshop.com