Craftsman 919.762500 manual Symptom, Cause, Solution, Water dripping, from pump

SYMPTOM CAUSE SOLUTION

Engine won't start

1.Engine throttle is in "OFF" Position.

2.Choke lever has not been placed to choke.

3.Pressure buildup after initial use.

S_ide thro_te to "Rabbit" position.

2.Slide choke tever to choke position°

3.Depress trigger gun.

Won't Draw Chemical

l.Nozzle not in chemical draw position.

2.Chemical screen is obstructed.

3.Chemical screen not working.

4.Chemical injector orifice obstructed or stuck.

5.Chemical injector closed.

1.Place nozzle to low pressure.

2.Check chemical screen; clean if obstructed.

3.Make sure chemical screen is submerged in chemical/water.

4.Check and clean.

5.Open chemical injector by turning adjustment knob.

Pump

running

1.

Water

supply

restricted.

t.

Check

water

supply

and filter

screen for.

normally

but

blockage.

Check hoses for btockage_ kinks,

pressure

does

leaks,

etc.

not achieve

2.

Nozzle

is in low PSi position.

2.

Twist

nozzle

at

end

of

wand

clockwise

the

high

rated

values

pressure

poskion.

3.

Nozzle

incorrect

or worn.

3.

Check

and

replace.

4.

Pump

sucking

air.

4.

Check

that

hoses

and

fittings

are

air-tight.

5.

Nozzle

blocked.

5.

Clean

nozzle.

Fluctuating

1.

Pump

sucking

air.

t.

Check

that

hoses

and fittings

are

air tight.

Purge air

Pressure

from garden

hose.

2.

Garden

hose inlet

strainer

clogged.

2.

Clean.

Check

filter frequently.

3.

Worn Seals

or

Packing.

3.

Check

and

replace.

4.

Inadequate

water

supply.

4.

Check

hose

for

kinks.

5.

Fouled

or dirty

inlet or discharge

5.

Check flow available to pump. Check for

valves.

excessive heat,

145° F or

above.

6.

Leaky

discharge

hose.

6.

Clean

inlet

and

discharge

valve

assemblies.

Replace

if

damaged.

Pressure

drops

I.

Nozzle

clogged,

partially

obstructed.

1.

Use nozzle

cleaning

kit to

clear obstruction.

(See

after period of

Nozzle

Maintenance

under

Service Adjustment.)

normal

use

2.

Nozzle

worn.

2.

Clean

or replace.

3.

Pump Valves worn, dirty or stuck.

3.

Check

and

replace.

4.

Worn

pump

piston

packing.

4.

Check

and

replace.

Pump

noisy

t,

Water

too hot.

!.

Reduce

temperature

below

63 ° C or 145 o F.

2.

Pump

sucking

air.

2.

Check

that

hoses

and

fittings

are

air tight.

3.

Valves

dirty

or

worn.

3.

Check,

clean

or

replace°

4.

Worn

bearings.

4.

Check

and

replace

if necessary.

Presence

of

I.

High humidity.

1.

Change

Qi!.

water

in

oi_ (oi!

2.

Piston

packing

and oil seal

worn.

I 2.

Check

and

replace

oil

seats_

milky),

Water dripping

1.

Thermat

relief

functioning

normal.

1.

Protecting

pump, if not using pressure washer for

from pump

2.

FiRings

Loose.

a long

period

of time. shutoff

engine.

3.

O-rings

of piston guide

or retainer

2.

Tighten°

worn,

3.

Check

and

replace.

4.

Piston

packing worn.

4.

Check

and

rep}ace_

O

1.

Oi{ seai worn

i.

Check

and

replace

-.._Dripping

2.

Loose

drain

plug or worn

drain plug

2.

Tighten drain plug orreplaceO-ring.

Do not over torque.

o-dng°

16