Leach AP215 1 Manual Del Propietário página 4

1. Follow instructions in the Briggs & Stratton Instruction Manual in
all matters of engine maintenance. The air filter must be cleaned
regularly, the proper level of oil maintained in the crankcase,
and the engine oil must be changed at regular intervals.
2. After every 100 hours of operation, the cylinder head should be
removed and the engine deposits removed carefully from the
combustion chamber and the top of the piston. We recommend
that engine work such as carbon removal be done by a Briggs
& Stratton or Homelite Construction Equipment Service Station.
The engine can be inspected, repaired if necessary, and tuned
for optimum performance at this time.
DIAGNOSIS
1. DOES NOT PRIME OR DOES NOT PUMP
25 INCHES (MAX.)
2. OUTPUT O.K. AT LOW LIFTS, BUT FALLS OFF AT
MEDIUM HEIGHT SUCTION LIFTS.
Failure of pump to perform satisfactorily, i.e. pump heavy liquids or
negotiate high lifts up to its expected ability, may not be the
pump's fault. If you find nothing wrong with the pump, have the
engine inspected, overhauled if necessary, and tuned for the
altitude range you expect to use the pump.
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ENGINE MAINTENANCE AND UNIT STORAGE
PUMP TROUBLE-SHOOTING AND REPAIR
NOTE
3. When the engine is to be idle for a long period of time, both
pump and engine should be prepared for storage as given
below:
(a) If the engine tank contains anti-oxidant-treated gasoline you
may store the pump for as long as two months with the tank
filled to the top. If the gasoline is untreated, drain the tank
and use up your reserve fuel supply in another engine. Start
and run the pump engine until it dies from lack of fuel.
(b) Drain the pump. If the pump contains liquids which could
dry out and cake up, it is a good idea to pump a little clear
water before draining the pump.
(c) Leave the filler and drain plugs out of the pump.
(d) Wipe down the exterior of the unit. It must be stored in a
dry, well ventilated area, away from fertilizers and corrosive
salts. Try to keep the unit in a cold or cool area where the
temperature changes very little. Dampness and heat will
accelerate rust of the engine parts, so cold, dry area
storage is your best bet for long engine life.
TREATMENT
• Fill pump with clean liquid and try priming again.
• Disconnect suction and discharge lines at pump. Check pump
suction by holding palm of hand over suction opening (or use a
vacuum gauge). Maximum vacuum should be about 25" Hg on
vacuum gauge. You can live with less vacuum as long as
satisfied with lower performance. If dissatisfied, disassemble
and check the impeller, wear plate and seal.
• If pump suction tests O.K., attach suction line and check
suction at end of suction line. Failure to get suction here
indicates leaking connections or leaking or collapsing lines.
Liners of damaged suction hose will often be sucked shut inside
the hose.
• If good intake suction, put on the discharge line. The only thing
which could interfere with pumping here would be a blockage.
• Worn pump can handle low lifts. Lower the lift distance, if
possible, or check pump out as below.
• Body screws have loosened to permit an interior air leak.
Recheck after tightening.
• Worn or damaged pump parts. Disassemble. Check rubber
wear plate, impeller volute and shaft seal. Replace any broken
or worn components; check clearance between impeller blades
and wear plate. Reassemble using all new "0" rings. Shim to
.015" impeller to volute clearance during reassembly.