ULTRA Plus+ 1500 Airless Paint Sprayer - Graco Inc.

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Pressure Control Repair2292302323a202214213 216215217218219A220B213214C201Torque to 17 N–m (150 in. lbs)Fig 162. Carefully slide new o–ring (220) down bore (A) ofmotor control (201) into o–ring groove (B). Makesure o–ring is in groove around its entire circumference.NOTE: O–ring (220) is made ofPTFE which is moredifficult to work with.3. Carefully slide new transducer and plasticspacer (217) down bore. Loosely attachbracket (218), screws (213), and washers (214).4. Seat transducer into o–ring by drawing downscrews and washers until bracket is flush withmotor control surface. 5. Carefully remove transducer and verify that o–ringis seated correctly and not pushed out of groove. Ifnot seated correctly use new o–ring and repeatsteps 2 through 5.6. When o–ring is correctly installed, reinstall transducerand tighten screws to 17 N–m (150 in. lbs).Install spacer (216) and C–clip (215). Re–connectelectrical lead and re–assemble sprayer.7. Follow Operation Startup procedures for sprayeron page 7 using compatible fluid.8. Inspect weep hole (C) for any leakage.9. If any leakage is present, replace o–ring repeatingsteps 1 through 9.
Pressure Control WiringGRN/YEL wire, E to housing groundTwisted pairsHousing ground4 5 6ELNBRN wire, L to on/off sw–1BLU wire, N to on/off sw–4BLU/WHT wire to L2 on boardBRN/WHTwire to L1on boardOn/off sw1 23Purple wires to I1and I2 on boardTwisted pairsTo J3BRN wire to on/off sw–2BLU wire to on/off sw–5From control housing,one purple wire to I1From controlhousing, BLU/WHT wire to L2From control housing,one purple wire to I2I1L2L1From controlhousing, BRN/WHT wire to L1Connector frompotentiometer to J3I2J3J7Twisted pairJ5 J4J6GNDGround wire tohousing groundWires J4/J5 to12/10 switchConnector from pressuretransducer to J6Fig 17
Page 1: INSTRUCTIONS-PARTS LIST308-552INSTR
Page 7: OperationPressure Relief ProcedureW
Page 12 and 13: TroubleshootingTYPE OF PROBLEMMotor
Page 14 and 15: -Motor Brush ReplacementBHBCOrder p
Page 16 and 17: Pressure ControlCAUTIONDo not insta
Page 21 and 22: Seals (93) located inside conduit (
Page 23 and 24: Drive Housing ReplacementWARNINGINJ
Page 25 and 26: Model 231-321, Series AIncludes ite
Page 27 and 28: Notes
Page 29 and 30: Part Number 239-429Pressure Control
Page 31 and 32: Technical DataPower Requirements (f

ULTRA Plus+ 1500 Airless Paint Sprayer - Graco Inc.

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