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A. ELECTRICAL SHOCK HAZARD
Do not service pump or electrical equipment while energized. Electricity can cause personal injury,
death or property damage.
1. Adhere to “Lock Out” and “Tag Out” procedures for electrical equipment.
2. Before commencing pump service, turn power supply off.
3. Keep water away from electrical outlets and electrical devices.
4. Electrical components must be installed by a qualified electrician to avoid risk of electrocution.
B. ROTATING PARTS HAZARD
Do not service pump while energized. Moving, rotating or reciprocating parts can crush and cut, causing
personal injury, death or property damage.
1. Adhere to “Lock Out” and “Tag Out” procedures for electrical equipment.
2. Before commencing pump service, turn power supply off, turn water supply off, squeeze trigger on gun to relieve
system pressure.
3. For mobile equipment, be sure engines and hydraulics are turned off and secured to avoid accidental start.
4. Do not operate with safety guards removed.
5. Always use safety guards on all belt drives, couplings and shafts.
C. HOT SURFACE HAZARD
Do not touch pump, accessories or drive system while operating and until cool down is complete. Touching
hot surface areas of the pump, accessories or drive system can cause severe burns or personal injury.
D. SKIN PUNCTURE HAZARD
Do not allow spray to contact any part of the body or animals. Pumped liquids under high pressure can pierce
skin and underlying tissue or can deflect debris leading to serious personal injury or death.
1. Relieve all line pressure in the inlet line to the pump and discharge line from the pump before performing any
maintenance on the pump.
2. When high pressure gun is not in use, set safety trigger lock (safety latch) to avoid accidental high pressure
operation and personal injury or property damage.
3. Do not check for leaks with hand. Use a piece of cardboard to check for leaks.
4. Review cleaning procedures to minimize heavy back blasting.
5. Wear adequate safety equipment and clothing when operating high pressure sprayer. Never use high pressure
spray with bare feet or exposed skin, and always wear safety glasses.
E. PUMPING LIQUIDS HAZARD
Do not operate pump with hot water, chemicals, or other hazardous liquids unless extraordinary safety
precautions are observed. Pumping hot water, chemicals, or other hazardous liquids can expose personnel to
serious injury.
1. Provide guards or shields around equipment to protect personnel.
2. Wear mask, goggles or eye protection while operating high pressure equipment.
3. Obtain a material safety data sheet (MSDS) and take appropriate safety measures for the liquid being handled.
F. OVER PRESSURIZATION HAZARD
Do not operate high pressure pumping system unless extraordinary safety precautions are observed.
A high pressure pumping system can deadhead or over pressurize causing serious personal injury and
property damage.
1. All high pressure systems require a primary pressure regulating device (i.e., regulator or unloader) and a secondary
pressure safety relief device (i.e., pop-off valve, safety valve, rupture disc) to assure proper pressure setting and
overpressure protection.
2. All high pressure systems require a pressure gauge to monitor pressure settings and avoid overpressure of
equipment or personal harm.
3. Install primary pressure relief device on the discharge side of the pump.
4. Install secondary pressure relief device between the primary device and pump.
5. Install pressure gauge onto the discharge manifold or in the discharge line near the manifold.
6. Open all valves on discharge side of plumbing before operation.
