Waspper GF120, Operation Manual

Page: 9 / 14

8
Use of self-priming detergent
The pump has the ability to automatically inject the detergent with
pressure from the container. A black nozzle for the application of
detergent is required to run this function (cat. number: ASBS0-
N0065). Only with the use of the nozzle, the pump starts to inject the
detergent itself through the hole indicated by the arrow. Connect the
supplied detergent tube to the place mark with an arrow (near the
pump high-pressure end) and immerse the other end with the
suction sieve into the diluted detergent container. Apply the
detergent by pressing the gun trigger.
This configuration
doesn’t serve to create active foam.
In order to create
active foam, it’s necessary to buy an aerator (cat. number:
SP000-
FL002).
Pump storage for winter season
Storing the pump in areas with the ambient temperature below the freezing point may
result in irreversible damage to internal components, if not drained properly!
Excess water draining procedure:
Make sure the engine switch (p. 3 pos. C) is in the
OFF (0) position.
Disconnect the supply hoses from the pump. Grasp the starter cord grip and pull the cord
5 times,
as if you
were starting the engine. This action will help the water drain out of the pump through the high-pressure opening.
It is not recommended to store the pump in areas with the ambient temperature dropping below the freezing
point, since a significant change of outside temperature may result in condensation of water vapour even in
areas regularly not affected by water ingress. That may result in internal corrosion and a more significant
reduction of the service life of pump and engine.
Troubleshooting
Problem Cause Remedy
The pump fails to generate
sufficient water pressure,
the water jet is intermittent
and the water flow is low 1.
Nozzle with a large opening used
2.Blocked water supply
3.Low volume of water supply
4.Clogged screen on water supply line
5.Clogged or leaking high-pressure hose
6.Supply water temperature too high
7.Water pressure leakage from the gun
8.Clogged nozzle
9.Damaged pump
10. Improper priming of pump during the
self-priming mode
1.Replace it with a nozzle of the correct size
2.Check free water flow
3.Use a higher water pressure or a hose of
larger diameter
4.Clean the screen or replace it with a new
one
5.Remove contaminants, turn the hose
around, flush it or replace it with a new hose
6.Procure a supply of colder water
7.Check the connections for tightness, replace
the gun
8.Clean the nozzle with a steel wire and flush
it with flowing water
9.Contact a servicing centre
10. Check all the connections on the inlet side
for tightness, prime the pump as instructed
(page 4)
The pump fails to draw the
cleaning agent 1.Wrong nozzle used
2.The priming hose is not dipped in the cleaning
agent or it is clogged
3.Clogged hose or strainer 1.Replace the high-pressure nozzle with a
low-pressure (black) one
2.Check the volume of cleaning agent and
adjust the position of hose
3.Clean the washer with flowing water,
replace the priming hose
The engine runs smoothly
when not loaded, jerky under
load 1.Low engine speed
2.
Water pressure too high
1. Adjust the position of speed control lever,
check the position of locking screw for engine
speed control
2. Reduce the water outlet pressure by the
pump controller as described on page 8.
The engine stopped during
operation 1.The engine has run out of fuel
2.The spark plug terminal has fallen out
3. Low oil level in the engine 1.Add fuel into the tank
2.Check the spark plug terminal
3. Check the engine oil level