Black Max BM80721 Operator's Manual page 17

USING THE HIGH PRESSURE HOSE
WARNING:
Injection hazard. Fully unwrap and straighten high
pressure hose prior to and during each use and do
not allow it to become kinked. The high pressure hose
features an outer covering that provides strength to the
hose. If the outer covering becomes damaged, stop using
the hose and replace it immediately. A kinked or damaged
hose can develop a high pressure leak and result in a
possible injection or other serious personal injury.
To prevent damage to the outer covering:
 Inspect the hose before every use.
 Fully unwrap and straighten hose before use.
 Do not allow the high pressure hose to be kinked.
 Keep hose away from hot surfaces and sharp edges.
 Do not pull unit by high pressure hose.
 Do not allow hose to be crushed or wrapped around
objects.
WASHING WITH DETERGENT
See Figures 15 - 16.
As sold, this unit is designed for use with "downstream"
pressure washer detergents. To convert for use with
"upstream" detergents, contact customer service or a
qualified service center for more information.
NOTICE:
USE ONLY DETERGENTS DESIGNED FOR PRESSURE
WASHERS. Do not use household detergents, acids,
alkalines, bleaches, solvents, flammable material, or
industrial grade solutions, which can damage the pump
or cause property damage. Many detergents may
require mixing prior to use. Prepare cleaning solution
as instructed on the solution bottle. Always test in an
inconspicuous area before beginning.
 Disconnect pressure washer from power supply.
 Pour detergent in the soap tank.
NOTE: Use a funnel, if needed, to prevent accidental
spilling of the detergent outside the tank. If any detergent
is spilled during the filling process, make sure the unit is
cleaned and dried before proceeding.
 Install the blue soap nozzle on the spray wand.
 Squeeze the trigger and wait approximately 5 seconds
for the detergent to appear.
 Spray the detergent on a dry surface using long, even,
overlapping strokes. To prevent streaking, do not allow
detergent to dry on the surface.
OPERATION
Before shutting off the motor:
 Fill the soap tank with clean water.
 Spray the clear water through the spray wand until the
tank is empty.
 If any detergent remains in the spray, repeat with a second
tank of clean water.
 Shut off the motor.
NOTE: Shutting off the motor will not relieve pressure in the
system. Pull trigger to release water pressure.
RINSING WITH THE PRESSURE WASHER
 Turn off the pressure washer and shut off the water
supply. Pull trigger to release water pressure.
 Engage the lock out on the trigger handle by pushing up
on the lock out until it clicks into the slot.
 Remove the soap nozzle and place in the nozzle storage
area.
 Select the right nozzle for the job. See the chart shown
earlier in the manual to select the appropriate nozzle.
 Start at the top of the area to be rinsed and work down,
overlapping the strokes.
USING PUMP PROTECTOR
See Figure 17.
Regular use of a commercially available pump protector
prolongs the life of the pressure washer by removing hard
water mineral deposits, lubricating pump seals and pistons,
and preventing freeze damage. Pump protector should
be added to the unit after every use and before storage.
Pump protector can be purchased at the retailer where you
purchased your pressure washer, or by calling customer
service.
The instructions that follow are typical for adding pump
protector but you should always verify the specific
instructions provided by the manufacturer of the pump
protector used.
 Turn off the pressure washer motor and shut off the water
supply. Pull trigger to release water pressure.
 Disconnect garden hose and high pressure hose.
 Unscrew threaded top from pump protector bottle and
remove paper seal from bottle. Reinstall top on bottle and
tighten securely.
NOTE: The rubber seal should remain inside the threaded
top. If it comes out, be sure to replace before reinstalling
the top.
 Remove bottle cap and attach threaded end of bottle
securely to pressure washer pump water intake.
 Squeeze bottle to inject contents into pump.
 Pump is protected when the protector fluid exits the pump
outlet.
Page 13 — English