User manual GRACO HUSKY 750 308703F

[. . . ] Instructions­Parts List Huskyt750 and Huskyt2000 308703F Surge Suppressors For control of pressure fluctuations and acceleration loss, preventing cavitation. For professional use only. 120 psi (0. 8 MPa, 8 bar) Maximum Air Input Pressure 120 psi (0. 8 MPa, 8 bar) Maximum Fluid Working Pressure See the Model Numbers on page 12. ENG Important Safety Instructions Read all warnings and instructions in this manual. Save these instructions. 06887 06891 06888 06892 06894 Model 239088 Model 239091 Model 239095 Model 239096 Model 239126 Table of Contents Symbols . 18 Symbols Warning Symbol WARNING This symbol alerts you to the possibility of serious injury or death if you do not follow the instructions. Caution Symbol CAUTION This symbol alerts you to the possibility of damage to or destruction of equipment if you do not follow the instructions. WARNING EQUIPMENT MISUSE HAZARD Equipment misuse can cause the equipment to rupture or malfunction and result in serious injury. INSTRUCTIONS D This equipment is for professional use only. [. . . ] D Because pressure is equal in all directions, the surge suppressor can be installed in any position, but the vertical position shown in Fig. Fluids with high specific gravity or high viscosity, settling of heavy material, and possible air entrapment further limit the mounting positions other than those shown in Fig. NOTE: When you mount a plastic surge suppressor, do not overtighten by using a large pipe wrench near the threads of the fluid inlet. The housing may crack if tightened too much. Hand tightening is recommended. Connecting Automatic Models D Connect the 1/4-in air supply hose to the 1/4 npt connection on the top of the surge suppressor. D The air pressure to the surge suppressor must be greater than or equal to the pump discharge and/or system pressure. For equal air pressure, you can use a tee in the pump's air supply line to run an air line to the surge suppressor. D For models with elastomer bladders, the tee must be located in the pump's air supply line before any pump controller or instrumentation such as the filter, regulator, or pump control valve. D For models with PTFE bellows, the tee must be located in the pump's air supply line after any pump controller or instrumentation such as the filter, regulator, or pump control valve. Connecting Manual Models D Connect the 1/4-in air supply hose to the brass one-way check valve on the top of the surge suppressor. D The air pressure to the surge suppressor must be greater than or equal to the pump discharge and/or system pressure. For equal air pressure, you can use a tee in the pump's air supply line to run an air line to the surge suppressor. D The tee must be located in the pump's air supply line before any pump controller or instrumentation such as the filter, regulator, or pump control valve. 6 308703 Operation Pressure Relief Procedure Minimum and Maximum Operating Temperatures Find the minimum and maximum operating temperatures for your surge suppressor unit in the list below. These temperature limits are stated at zero gauge pressure. WARNING PRESSURIZED EQUIPMENT HAZARD The equipment stays pressurized until pressure is manually relieved. To reduce the risk of serious injury from pressurized fluid, accidental spray from the dispensing device, or splashing fluid, follow this procedure whenever you D D D D Are instructed to relieve pressure Stop pumping Check, clean, or service any system equipment Install or clean fluid nozzles Automatic Husky 750 239095 239096 239121 239122 239123 239124 10_ to 180_ F (­12_ to 82_ C) 32_ to 175_ F (0_ to 79_ C) 40_ to 175_ F (4_ to 79_ C) 32_ to 175_ F (0_ to 79_ C) 40_ to 220_ F (4_ to 104_ C) ­10_ to 350_ F (­23_ to 176_ C) 1. Stop pumping, and shut off the air to the pump. Relieve pressure in the surge suppressor as follows: D For automatic surge suppressors, remove the air pressure gauge, and allow any residual air pressure to escape. D For manual surge suppressors, adjust the regulator to relieve the air pressure by dialing down the pressure. Automatic Husky 2000 239092 239093 239126 239127 239128 32_ to 175_ 32_ to 175_ 40_ to 175_ 32_ to 175_ 40_ to 175_ F (0_ to 79_ F (0_ to 79_ F (4_ to 79_ F (0_ to 79_ F (4_ to 79_ C) C) C) C) C) WARNING TOXIC FLUID HAZARD Hazardous fluid or toxic fumes can cause serious injury or death if splashed in the eyes or on the skin, inhaled, or swallowed. D Use fluids and solvents which are compatible with the equipment wetted parts. Refer to the Technical Data section of all equipment manuals. Generally, pulsation is most effectively minimized when the air supply to the surge suppressor is regulated to 2 to 10 psi (0. 01 to 0. 07 MPa, 0. 1 to 0. 7 bar) lower than system pressure. NOTE: Automatic surge suppressors are not recommended for use as suction stabilizers at the pump inlet or as a surge suppressor at a quick-closing valve. Adjustable surge suppressors should be used for such applications. 8 308703 Troubleshooting WARNING To reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the Pressure Relief Procedure on page 7. PROBLEM Surge suppressor does not hold pressure. CAUSE Manual or automatic models: ­Leaking threaded connections ­Loose flange bolts or clamp ­Failed bladder or bellows ­Blocked air line to unit Automatic models only: ­One-way valve at air inlet is installed backwards. ­Gauge shows no pressure, and pump is not running. [. . . ] 18 lb (8. 2 kg) 308703 17 Graco Standard Warranty Graco warrants all equipment manufactured by Graco and bearing its name to be free from defects in material and workmanship on the date of sale by an authorized Graco distributor to the original purchaser for use. With the exception of any special, extended, or limited warranty published by Graco, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by Graco to be defective. This warranty applies only when the equipment is installed, operated and maintained in accordance with Graco's written recommendations. This warranty does not cover, and Graco shall not be liable for general wear and tear, or any malfunction, damage or wear caused by faulty installation, misapplication, abrasion, corrosion, inadequate or improper maintenance, negligence, accident, tampering, or substitution of non-Graco component parts. [. . . ]