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Graco Inc. 307-308 manual

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Table of contents for the manual

  • Page 1

    INSTRUCTIONS-PARTS LIST e 307-308 Rev. "6" 9-78 This manual contains IMPORTANT WARNINGS and INSTRUCTIONS READ AND RETAIN FOR REFERENCE ORACO SUPERSEDES 1-78 HYDRA-CLEAN" 1007 MODEL 226-813 SERIES "A" Includes Hose and Gun Kit and Chemical Injector Kit for injecting cleaning chemicals downstream from pump. ldw PSI I70 barl O[...]

  • Page 2

    WA RNlNG HIGH PRESSURE SPRAY CAN CAUSE SERIOUS INJURY READ THESE WARNINGS BEFORE USING KEEP AWAY FROM SPRAY Because of the high pressure and velocity of the spray, fluids could penetrate the skin, causing serious injury. Operate equipment only after all instructions are clearly understood. NEVER point the gun at yourself or anyone else. NEVER put y[...]

  • Page 3

    SETTING UP UNIT -A NOTE: Reference numbers and letters in paren- and the Parts Drawing. theses in the text refer to Figures 1, 3, 4 Refer to the engine instruction booklet provided with the unit. Prepare The Cleaning Solution Prepare and use cleaning solution according to manufacturer's instructions. recommend using a chemical injector kit. Se[...]

  • Page 4

    ~ OPERATION Startup Before starting, be sure to read the safety warnings and setup instructions. Check oil and gasoline levels daily and grease the pump if necessary. Turn on the water supply. Trigger the gun to release any back pressure. WARNING or triggered position. DO NOT wire or tie the gun trigger into the open Set the choke and open the fuel[...]

  • Page 5

    Lubrication Change the engine oil after every 50 hours of operation. every EO hours of operation. Remove excess grease Grease the pump's front bearing and main bearing after from the front bearing cavity. Replace the pump front cover before starting the engine. oil every 500 hours, but sooner if oil becomes dirty; The Lubricate the gear reduct[...]

  • Page 6

    - Accompanied By Smooth Decreased Delivery Operation Excessive Leakage suction piping (suction valve Plugged or constricted not fully open); Collapsed suction hose. Worn valve seats. Slipping couplers. Worn piston cups; Loose piston bolts; Damaged O-rings; Cracked ceramic liners; Faulty gaskets; Loose valve caps; Loose cylinder head bolts or malfit[...]

  • Page 7

    Valve Replacement .. Mount the valve disc (61 on the spring (7). See Fig 3. Then mount the spring in the cage recess (8). Slip thls Make sure that the O-rings (2 & 3)have been inserted in assembly into the head cavities behind the valve seat (5) the proper places according to the diagram. It is Wise to and O-rings (4). Put the valve caps 115) o[...]

  • Page 8

    Unloader Remove the locknut (67). adjusting nut (68) and spring washers (71). Remove bolts (511 and separate the upper and lower casings (48 and 49). All other parts can then be freely removed. To replace the cup and back-up ring (46 and 47): a. Cut through the old cup and back-up ring and b. Grip the shaft sleeve (69) in a vise equipped with jaw r[...]

  • Page 9

    MODEL 226-813 SERIES "A" WITH HOSE, GUN AND NOZZLE Includes items 1-102 8 307-308[...]

  • Page 10

    PARTS LIST REF PART DESCRIPTION an REF PART DESCRIPTION NO. NO. aN NO. NO., 1 2 3 4 6 5 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 , 27 28 29 30 31 32 33 35 34 36 37 38 39 40 41 42 43 44 45 46 47 49 48 50 51 52 53 54 *104-868 *X ff x* *I f. ** ** ** ** ** ** 105-304 105-301 100.659 '104-870 '104-862 '104-861 "104-8[...]

  • Page 11

    ~ ACCESSORIES (Must be purchased separately) SPRAY HOSES Additional hoses may be used up to a maximum overall length of 150 ft 146 m) overall length. Purchase part no, 207-152 swivel union to connect hoses. Part No. Length Thd Size 19.5 mml 113 mml 3/8 npt Imbel 3/8 npt Imbel 205-EO9 1/2 in. CHECK VALVE 103-913 Prevents back up of contaminated wate[...]