Craftsman 919.67028 owner manual Symptom, Engine wont start, Cause, Solution

SYMPTOM

Engine won't start

CAUSE

1.Engine throttle is in "OFF" Position.

2.Choke lever has not been placed to choke.

3.Pressure buildup after initial use.

SOLUTION

1, Slide throttle to "Run" position.

2, Slide choke lever to choke position.

3. Depress trigger gun.

Won'tDraw

Chemical

1.Adjustment knob on soap nozzle is turned fully clockwise for less soap (-).

2.Chemical screen is obstructed.

3.Chemical screen not working.

4.Chemical injector orifice obstructed or stuck.

1.Turn knob counterclockwise for more soap (+).

2.Check chemical screen; clean if obstructed.

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

4.Check and clean.

Pump running		1.	Water supply restricted.
normally	but
pressure	does
not achieve rated		2.	Adjustment knob on soap nozzle is
values			turned fully clockwise for less soap (-)
		3.	Nozzle incorrect or worn.
		4.	Pump sucking air.
		5.	Nozzle blocked.

1.Check water supply and filter screen for blockage. Check hoses for blockage, kinks, leaks, etc.

2.Turn knob counterclockwise for more soap (+).

3.Check and replace.

4.Check that hoses and fittings are airtight.

5.Clean nozzle.

Fluctuating	1.	Pump sucking air.	1.	Check that hoses and fittings	are airtight. 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.	Check flow available to pump. Check for
	5.	Fouled or dirty inlet or discharge
		valves.		excessive heat, 145° F or above.
	6.	Leaky discharge hose.	6.	Clean inlet and discharge valve assemblies.
				Replace if damaged.
Pressure drops	1.	Nozzle clogged, partially obstructed.	1.	Check connection. Replace if cracked or
after period of				punctured.
normal use	2.	Nozzle worn.	2.	Clean or replace.
	3.	Valves worn, dirty or stuck.	3.	Check and replace.
	4.	Worn piston packing.	4.	Check and replace.
Pumpnoisy	1.	Water too hot.	1.	Reducetemperaturebelow63°Cor145°F.
	2.	Pump sucking air.	2.	Check that hoses and fittings	are airtight.
	3.	Valves dirty or worn.	3.	Check, clean or replace.
	4.	Worn bearings.	4.	Check and replace if necessary.
Presence of	1.	High humidity.	1.	Change Oil.
water in oil (oil	2.	Piston packing and oil seal worn.	2.	Check and replace oil seals.
milky);
Water dripping	1.	Fittings Loose.	1. Tighten.
from pump	2.	O-rings of piston guide or retainer	2.	Check and replace.
		worn.
	3.	Piston packing worn.	3.	Check and replace.
Oil Dripping	1.	Oil seal worn	1.	Check and replace
	2.	Loose drain plug or worn drain plug	2.	Tighten drain plug or replace	o-ring. Do not over
		o-ring,		torque.

02os9oR_,o ,_oo 16-ENG