Instruction/ maintenance manual of the product 795 Premium Hi-Boy Graco Inc.
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IMPORT ANT SAFETY INSTRUCTIONS Read all w ar nings and instructions in this manual. Sa v e these instructions. 3A0157A Electric Airless Spra yer s - For Portable Airless Spr aying of Architectural Coatings and Paints - 3300 psi (2 27 bar, 22 .
Models: 2 3A0157A Models: 695 UL TRA MAX lIl Model QuikReel Hi-Bo y Lo-Bo y 258719 ✓✓ 258720 ✓ 258722 ✓ 258872 ✓ 258873 ✓ 258874 ✓ 258876 ✓ 258877 ✓✓ 826124 ✓✓ 826125 ✓ 82612.
Table of Contents 3A0157A 3 T able of Contents Models: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 T able of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 W arnings . . . . . . . . . .
Warnings 4 3A0157A Wa r n i n g s The f ollowing w arnings are f or the setup , use, g rounding, mainten ance and repair of this equipment . The e xclamation point symbol alerts you to a ge neral w ar ning and the hazard symbo l ref ers to procedure-specif ic risks.
Warnings 3A0157A 5 FIRE AND EXPLOSION HAZARD Flammable fumes , such as solvent and paint fumes , in work area can ignite or e xplode. T o help p rev ent fire and e xplosion: • Do not spra y flammab le or combustib le materials near an open flame or sources of ignition such as cig- arettes, motors , and electrical equipment.
Warnings 6 3A0157A W ARNING EQUIPMENT MISU SE HAZARD Misuse can cause death or serious injur y . • Alwa ys wear appropriate glov es, ey e protection, and a respirator or mask when painting. • Do not operate or spra y near children. K eep children aw a y from equipment at all times.
Component Identi fication 3A0157A 7 Component Identification 11. 12. 10. 13. 1. 2. 4. 5. 6. 7. 8. 9. 3. ti14839a 1 Premium Digital Display 2 ON/OFF s witch 3 W atchDog ™ Switch (not av ailab le on M.
Pressure Relief Procedure 8 3A0157A Pressure Relief Pr ocedure 1. T urn power OFF . Wait 7 seconds for power to dissipate. 2. Lock gun trigger sa f ety . Rem ov e guard and SwitchTip . 3. T urn pr essure to lowest set ting. T rigge r gun to relie ve pressure.
Grounding 3A0157A 9 Gr ounding The spra yer must be g rounded. Grounding reduces the risk of static and electric shock by pro viding an escape wire f or the electrical current due to static b uild up or in the e v ent of a short circuit. The spra yer cord includes a ground ing wire with an appropriate gro unding contact.
Troubleshooting 10 3A0157A T r oub leshooting Mechanical/Fluid Flo w Pe r fo r m Pressure Relief Pr ocedure ; p age 8. TYPE OF PR OBLEM WHA T T O CHECK If chec k is OK, go to next ch eck WHA T T O DO When check is not OK, refer to this column E=XX is display ed 1.
Troubleshooting 3A0157A 11 Pump output is low 1. Spra y tip wor n 1. F ollow Pre ssure Relief Pro cedure on page 8, then replace t ip . See your sepa - rate gun or tip manual. 2. Spra y tip clogged 2. Relie ve pressure . Chec k and clean spra y tip . 3.
Troubleshooting 12 3A0157A Motor runs b ut pump does not strok e 1. Displacement pump pin ( 32) damaged or missing; see pump manual 310643 or 310894. 1. Replace pump pin if missing. Be sure retainer spr ing ( 31) is fully in groov e all around connecting rod; see pump manua l 310643 or 310894 .
Troubleshooting 3A0157A 13 Electrical Symptom: Sp rayer does not run or stops ru nning. Perform Pressure Rel ief Procedure ; pa ge 8. • Plug spra yer into correct voltage , ground ed outlet • Set pow er s witch OFF f or 30 seconds and then ON again (this ensures spra ye r is in normal r un mode).
Troubleshooting 14 3A0157A Spra yer does not run at all Chec k transducer or transducer connections (contro l board is not detecting a pressure signal). 1. Set spray er to OFF and disconnect power to spray er . 2. Check transducer and connections to control board.
Troubleshooting 3A0157A 15 Spra yer does not run at all Control is commanding motor to run but motor shaft does not rotate . P ossib ly locked rotor condition, an open connection exists between motor and control, there is a prob lem with motor or control board, or motor amp draw is e xcessiv e.
Troubleshooting 16 3A0157A Spra yer does not run at all Control is commanding motor to r un but motor shaft does not rotate. P ossibly lock ed rotor condition, an open connection exists between motor and control, there is a problem with motor or cont rol bo ard, or motor amp draw is e xcessive.
Troubleshooting 3A0157A 17 Spra yer doe s not run at all Allow spra yer to cool. If spray e r runs when cool, correct cause of ov erheating. K eep spray er in cooler location with good ventilation. Make sure motor air intake is not bloc ked. If spra yer still does not r un, follo w Step 1.
Troubleshooting 18 3A0157A Spra yer Will Not Shut Off 1. P erf or m Pressure Relief Pr ocedure ; page 8. Lea v e prime v alve open and power s witch OFF .
Troubleshooting 3A0157A 19 Spra yer Will Not Run (See f ollowing page f or steps) Remove control box cover. Turn sprayer ON. Observe control board status l ight on control bo ard (see page 13).
Troubleshooting 20 3A0157A 110-120 AC V - + - 110-120 AC V - + - - 100k ohm + - STEP 1: Plug power cord in and turn switch ON. Connect wires to control board and on/off switch. T ur n meter to A C V olts. STEP 2: Plug power cord in and tur n switch ON.
Troubleshooting 3A0157A 21 240 V A C and 110 V A C Motor Control Boar d Re m ova l P erform Pressu re Relief Proc edure ; page 8. Wait 5 minutes before servicing. 1. Remov e Motor Shroud (for units equipped wit h Hose Reel only): a. Remov e bolts from motor shroud .
Troubleshooting 22 3A0157A 5. Make s witch dip s witch is mov ed to the left (to ward inside of board ). See Wiring Diagram , pa ge 40. 6. Connect motor connectors ( F , G and H) and inst all into baffl e. 7. Connect transduc er conne ctor (E) to m otor contr ol board.
Troubleshooting 3A0157A 23 240 V A C Filter Boar d P erform Pressure Re lief Pr ocedure ; page 8. Re m ova l 1. Remove four screws (38) and cover (96). 2. Disconnect display connector (A) from mo tor control board (52). 3. Remove botto m two screws (39).
Troubleshooting 24 3A0157A Pressure Adjust P otentiometer Re m ova l Pe r fo r m Pressure Relief Pr ocedure ; page 8. Wa it 5 minutes before servicing. 1. Remove four screws (38) and cover (96). 2. Remove two scre ws and control panel. 3. Disconnect potentiometer co nnector (C) from motor control board (95) .
Troubleshooting 3A0157A 25 Pressure Contr ol T ransducer Re m ova l P erform Pressu re Relief Proc edure ; page 8. Wait 5 minutes before servicing. 1. Remove four screws (38) and cover (96). 2. Disconnect transducer connector (E) from motor control board (95) .
Troubleshooting 26 3A0157A Installation 1. Install o-ring (20) and transducer (86) in filter base (67). T or que to 35-45 ft-lb (4 7-61 N•m). Inst all grom- met onto tr ansducer (86) an d transducer into control box. 2. Connect transducer connector (E), W atchDog s witch, and reed s witch connector to contr ol board (95).
Notes 3A0157A 27 Notes.
Drive and Bearing Ho using Replacement 28 3A0157A Drive and Bearing Housing Replacement Disassembl y Pe r fo r m Pressure Relief Pr ocedure ; p age 8. 1. Remov e screw (31), tw o nuts (24 ), pail hanger (55) and pump rod co v er (108). 2. Remove pump (91); see Displacement Pump Replacement , page 32 (695/795) page 34 (1095/1595/ Mark V).
Drive and Bearing Housing Replacement 3A0157A 29 158 55 24 31 72 91 108 51 14 12 83 85 6 90 84 31 ti14892 a Drive and Bearing Housing Replacement.
Motor Replacement 30 3A0157A Motor Replacement Remo val Pe r fo r m Pressure Relief Pr ocedure ; p age 8. 1. Remove pump (91); see Displacement Pump Replacement , page 32 (695/795) page 34 (1095/1595/ Mark V). 2. Remov e drive housing (90); see Drive Ho using Replacement , page 28 .
Motor Replacement 3A0157A 31 ti14893a 158 90 28 90a 36 19 61 84 58 14 12 158 6 68 39 30 89 51 31 19 23 12 6 90 91 14 96 Motor Replacement.
Displacement Pump Replacem ent for 695/795/Mark IV 32 3A0157A Displacement Pump Replacement f or 695/795/Mark IV See pump manu al 310643 or 310894 f or pump repair instru ctions. See manual 3A01 58 f or applicable spra ye r par t number references. Remo val 1.
Displacement Pump Replac ement for 695/795/Mark IV 3A0157A 33 Installation If pump pin works loose, parts could break off d ue to f orce of pumping action . P ar ts could project through t he air and result in serious injury or proper ty damage. 1. Extend pump piston rod 1.
Displacement Pump Replacement 1095/1595/Mark V 34 3A0157A Displacement Pump Repl acement 1095/1595/Mark V Remo val 1. Flush pump . 2. Stop pump with piston rod in its lowest po sition. 3. P erf or m Pressure Relief Pr ocedure , page 8. 4. Separate dra in hose from spra yer .
Displacement Pump Replacement 1095/1595/Mark V 3A0157A 35 f . Place u-bolt on pum p door protr usion . 8. Ratchet pump door f orw ard. 9. Open pump do or . 10. Pull out pump pin and place in pin holder . Installation 1. Adjust piston rod with pin holder to pull ou t piston rod.
Displacement Pump Replacement 1095/1595/Mark V 36 3A0157A 4. Close pump do or and ro tate latch in to position. Do not tighten latch. 5. Rotate pump to align with paint hose . Connect paint hose and hand ti ghten to 70 in-lb . 6. Tighten latch and rotate la tch lock into lock ed posi- tion.
Hose Reel 3A0157A 37 Hose Reel Remo val 1. Remov e hose fitting fr om s wivel cap and completely remov e hose. 2. Remove cap from swiv el. 3. Remove E-clip from s wivel shaft. 4. Remove s wiv el. 5. Remov e snap ring. 6. Remov e hose reel. 7. Remov e rigid fluid tube from s wivel shaft (if ne ces- sar y).
Hose Reel 38 3A0157A Installation 1. Grease sha ft. 2. Replace swiv el shaft if it was remov ed. 3. Replace r igid fluid tube to s wivel shaft if it w as removed. 4. Make sure two washers and wav e spr ing are on hub bef ore hose reel is installed. 5.
Reed Switch Replacement 3A0157A 39 Reed Switch Replacement Remo val 1. Remov e fou r screws and re mov e displa y cov er . 2. Remov e two scre ws and remov e control panel. 3. Unplug reed s witch from control board. 4. Unscrew reed s witch from control panel.
Wiring Diagram 40 3A0157A Wiring Diagram 120V Models: ti13485a Pressure T ransducer Digital Display ON/OFF Switch Power Plug Black + white green/ground Motor green/ground Potentiometer AutoClean Black.
Wiring Diagram 3A0157A 41 120V Models (with 15/20 Amp Switch): Black Pressure T ransducer Digital Display ON/OFF Switch Power Plug Black + white green/ground Motor green/ground Potentiometer 1595 Swit.
Wiring Diagram 42 3A0157A 240V Models: Black Pressure T ransducer Digital Display ON/OFF Switch Power Plug Motor green/ground Potentiometer AutoClean W atchdog Motor Leads Motor Sensor Leads Thermal S.
Notes 3A0157A 43 Notes.
All written and visual data contained in this document reflects the latest product information available at the time of publica tion. Graco reserves the right to make changes a t any time without notice. This manual contains English. MM 3A0157 Graco Headquarters: Minneapolis International Offices: Belgium, China, Japan, Korea GRACO INC.
An important point after buying a device Graco Inc. 795 Premium Hi-Boy (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Graco Inc. 795 Premium Hi-Boy yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Graco Inc. 795 Premium Hi-Boy - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Graco Inc. 795 Premium Hi-Boy you will learn all the available features of the product, as well as information on its operation. The information that you get Graco Inc. 795 Premium Hi-Boy will certainly help you make a decision on the purchase.
If you already are a holder of Graco Inc. 795 Premium Hi-Boy, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Graco Inc. 795 Premium Hi-Boy.
However, one of the most important roles played by the user manual is to help in solving problems with Graco Inc. 795 Premium Hi-Boy. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Graco Inc. 795 Premium Hi-Boy along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
