Wacker Neuson PSA2 500, Operator'S Manual, Page: 49 / 60

Perform Maintenance Safely
Attach a “DO NOT OPERATE” warning tag to the control
levers. Lock out the unit according to the manufacturer’s
operating manual. If there is a key, remove it and take it
with you.
Install approved support device(s) when working under
or near raised equipment.
Remove only guards or covers that provide access to
the area being serviced. Replace all guards and covers
when work is complete.
WARNING! Avoid injury or death. Never work on
machinery with the engine running unless instructed
by the manufacturer’s manual(s) for specific service.
Pump Maintenance and Repair
MAKE SURE the pump is disconnected from the power
source or the appropriate circuits are dead and OSHA
Lockout/Tagout is applied before doing any mainte-
nance or repair work on the pump.
Pumps with float switches or other automatic devices
can start without warning if not properly locked out.
ALWAYS replace safety devices removed during the
service or repair before returning pump to operation.
NEVER use the power cord to aid in lifting the pump.
Sizing Extension Cords
Use the following chart to select the correct size exten-
sion cord to prevent excessive amperage draw or volt-
age drop which would cause the motor to overheat.
Cables that are too long or coiled can cause a volt-
age drop. Be aware that strong sunlight can cause a
voltage drop.
Amperes
Wire Gauge and Cord Length (in feet)
50 100 150
6
8
10
12
14
16
16
16
16
14
14
12 16
14
14
14
12
12 14
12
12
12
10
10
Check oil level ONLY when pump is cool.
USE ONLY recommended oil per manufacturer’s
recommendation.
INSPECT ELECTRICAL WIRING for worn or damaged
insulation. INSTALL new wiring if wires are damaged.
After repairs are made, clean the equipment before
putting the pump back into position.
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Perform Maintenance Safely
Common Maintenance
Safety Practices
Use Proper Ventilation
If it is necessary to run an engine in an enclosed area,
remove the exhaust fumes from the area with an
exhaust pipe extension.
If you do not have an exhaust pipe extension, make sure
you open doors and windows to get plenty of outside air
into the area.
WARNING! Exhaust fumes contain carbon
monoxide which could be deadly if inhaled. Never
operate any type of engine without proper
ventilation.
EXHAUST FUMES CAN KILL.
Fuel Hazards
WARNING! Avoid serious injury or death. Always
use approved fuel containers and/or fuel dispensing
equipment to reduce the risk of explosion or fire.
Always observe these practices to reduce the possibility
of a serious accident:
• Shut off engine and ignition during refueling
• Turn off all electrical switches
• Ground the fuel nozzle against the filler neck
• Keep sparks and open flames away from fuel. Do
not smoke while refueling or when handling fuel
containers
• Do not cut or weld on or near fuel lines, tanks or
containers
• Do not overfill the tank or spill fuel. Clean up spilled
fuel immediately. Clean spills immediately
Ventilate work area
No smoking and no
open flames
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