USER OPERATION AND MAINTENANCE
HP SERIES
PORTABLE PUMPS
39
13. Return pump to storage or
operation.
REPLACE SPARK PLUGS
Replace the spark plugs every 100 hours
of operation or yearly.
To replace the spark plugs ensure the
pump is cool and proceed as follows:
1. Unlatch and remove pump engine
covers to gain access to the pump
engine.
2. Disconnect negative battery lead.
3. Remove spark plug wire from
spark plug.
4. Using spark plug wrench remove
spark plug.
NOTE:
Do not blast clean
spark plug. Spark plug should
be cleaned by scraping or
wire brushing and washing
with a commercial solvent.
NOTE:
In some areas, local
law requires the use of a
resistor spark plug to suppress
ignition signals. If the engine
was originally equipped with a
resistor spark plug, be sure to
use the same type of spark
plug for replacement. The
following is a list of the
recommended sparkplugs.
Spark Plug Type
Champion
Autolite
Resistor
RC12YC
3924
Spark Plug Gap .............. 76 mm (.030 in.)
5. Obtain new spark plug and check
gap using a wire gauge. The proper
gap is 0.030 in (0.76 mm).
6. Insert the new spark plug into hole
and screw in being careful not to
cross thread.
7. Reconnect spark plug wire to
spark plug.
CAUTION:
Sparking can occur
if wire terminal does not fit
firmly on spark plug. Reform
terminal if necessary.
8. Reconnect negative battery lead.
9. Install pump covers and latch in
p l a c e .
SPARK PLUG GAP CHECKING
Summary of Contents for HP 400
Page 2: ...HP SERIES PORTABLE PUMPS USER OPERATION AND MAINTENANCE 2...
Page 4: ...HP SERIES PORTABLE PUMPS USER OPERATION AND MAINTENANCE 4...
Page 44: ...HP SERIES PORTABLE PUMPS USER OPERATION AND MAINTENANCE 44 X Series Pump Mounting Dimensions...
Page 48: ...HP SERIES PORTABLE PUMPS USER OPERATION AND MAINTENANCE 48 I Series Pump Dimensions...
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