Hotsy 558 - Maintenance

97-6331 • HOTSY 558-559 • REV. 4/06
OPERATOR’S MANUAL
PRESSURE WASHER
10
Figure 7 - Pump Lubrication
Oil Fill/Dipstick
Sight Glass
Oil Drain
Plug
To Stop
NOTE: If the machine is unplugged, the GFCI must
be reset prior to use. Always test GFCI before each
use.
1. If detergents were used, draw clean water through
the detergent inlet line to purge detergent. Failure
to do so may clog detergent injector valve.
2. If burner was used, turn OFF burner switch and al-
low pump to run cold water through coil for several
minutes.
3. Turn OFF pump switch.
4. Turn OFF water supply.
5. Squeeze trigger gun open to relieve system pres-
sure.
6. Depress gas control knob slightly and turn to OFF
position.
7. Turn off main shut-off valve on gas supply.
STORAGE
DANGER: Do not store flammable liquids (gasoline,
diesel fuel, petroleum, solvents, etc.) near pressure
washer or in non-ventilated areas.
1. Protect from freezing by storing in a heated area,
or by flushing the system with antifreeze (use an
automotive engine antifreeze or windshield washer
solvent to antifreeze). To flush the system with anti-
freeze, attach a short length of hose to the garden
hose connector, see Figure 1 for location. Place the
other end of the hose into a container of antifreeze.
Start machine and allow to run until antifreeze flows
from the end of the wand. Squeeze and release the
trigger gun several times to antifreeze the unloader
system. Also draw antifreeze through the detergent
inlet line to antifreeze the detergent system. For
added protection after antifreezing, disconnect the
pressure hose from machine and remove the coil
drain plug (refer to Figure 1 for location). After coil
has drained, replace pressure hose and coil drain
plug. If the pressure washer is not to be used for an
extended length of time, it is recommended that the
system be flushed with antifreeze for rust protection.
MAINTENANCE
WARNING: Unauthorized machine modification or
use of non-approved replacement parts may cause
personal injury and/or property damage and will
void the manufacturer warranty.
Pump
Lubrication: To lubricate pump, use 30W non-detergent
oil for pump crankcase. Crankcase must be filled to
center of sight glass window found on the side of the
pump, refer to Figure 7. During the break-in-period,
make sure the oil is changed after the first 25 hours of
operation. After that, replace oil every 3 months or 300
hours of operation, whichever comes first.
Proper Pump Care
• DO NOT pump acids.
• DO NOT allow pump to run dry.
• Winterize if storing in freezing temperatures, re-
fer to Storage for details.
• Use a water softener on the water system if known
to be high in mineral content.
• Use only high quality detergents and follow manu-
facturer’s mix recommendations.
• Flush the system with clean water immediately
after using detergent solutions.
• Clean filter screen on detergent inlet line periodi-
cally.
• Flush the pressure washer system with antifreeze
if storing for an extended period of time, refer to
Storage for details.