User manual GRACO SURGE TANKS 307707ZAN

[. . . ] Instructions­Parts List HIGH­FLOR SERIES Surge Tanks Important Safety Instructions Read all warnings and instructions in this manual. Save these instructions. 307707ZAN ENG These tanks reduce fluid surging in a high­ or medium­volume, low­pressure fluid system. For professional use only. Model 220157, Series E on Surge Tank Stand Kit 218742 7139A Model 238983, Series C on Surge Tank Stand Kit 218742 7287B Model 233736, Series A TI1898B Table of Contents Warnings . 5 Models 238983, 238984, 238985, 238986, 238987, 238988, 218509, and 220157 . [. . . ] NOTE: Do not install a continuously fed gas charge supply to the surge tank. Doing so will adversely affect the surge tank performance. Relieving Gas Pressure in the Tank D This tank has a pressure relief valve that automatically relieves gas pressure (only) in the tank if it overpressurizes while charging. D To manually relieve gas pressure in the tank, remove the cap from the charge valve (6). Press down the stem of the valve until all gas pressure is relieved. NOTE: Relieving all gas pressure takes several minutes. Flushing Procedure For the best flushing results, alternate the gas charge pressure between 2/3 of the fluid pressure (normal operating condition) and zero pressure. This allows the flushing solvent to reach all areas of the fluid containing vessel. 10 307707 Operation Models 238983, 238984, 238985, 238986, 238987, 238988, 218509, and 220157 relief valve cap Model 218509 shown tank charge valve cap tank charge valve 7142B Fig. 5 307707 11 Operation Model 233736 WARNING D Always follow the Pressure Relief Procedure on page 9 before you remove the surge tank for any reason. D Tighten all fluid connections securely before each use. D Never try to stop or deflect leaks with your hand or body. NOTE: Always re-torque all of the cap screws using a star-pattern sequence before you charge or operate the surge tank to ensure against fluid or air leakage. For torque specifications, see the Parts Drawing on page 20. Relieving Air Pressure in the Tank To manually relieve air pressure in the tank, back out the plug (11). Fill the Tank with Fluid 1. Charge the surge tank with air, as described at left. Ensure that the priming valve (R) is open. Start the pump and slowly increase the fluid pressure. When fluid flows from the priming valve, close the valve. The surge tank is ready for use. CAUTION The maximum working pressure for Model 233736 is 360 psi (2. 5 MPa, 25 bar). Do not exceed this fluid line pressure. Charging the Tank with Air The fluid line pressure must be at zero before you charge the tank. Pressure in the fluid line prevents the tank from accepting a full charge. Open the air valve (N) and set the air regulator (M) to the desired pressure. When the tank is charged with air, close the air valve (N) to prevent air from escaping when fluid is introduced. For the best results, set the air pressure to 15 psi (0. 1 MPa, 1 bar) below the fluid pressure. Do not exceed the maximum air pressure of 218 psi (1. 5 MPa, 15 bar). [. . . ] Canadian Registration Number (CRN) Model 218509 220157 Alberta 0C4155. 2 0C4155. 2 Ontario 0C4874. 5 0C4874. 5 307707 23 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 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 non­Graco component parts. [. . . ]