Graco 309941J- Manuals

Page 2 - Table of Contents; Models

2 309941 Table of Contents Component Function and Identification 4 . . . . . General Repair Information 5 . . . . . . . . . . . . . . . Grounding 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Troubleshooting 6 . . . . . . . . . . . . . . . . . . . . . . . . . Mechanical/Fluid Flow 6 ...

Page 3 - WARNING; FIRE AND EXPLOSION HAZARD; ELECTRIC SHOCK HAZARD

3 309941 WARNING FIRE AND EXPLOSION HAZARD Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode. To help pre-vent fire and explosion: D Use equipment only in well ventilated area. D Eliminate all ignition sources; such as pilot lights, cigarettes, portable electric la...

Page 4 - Component Identification and Function

4 309941 Component Identification and Function ti4281a ti2377a K E H B A D J G F V Fig. 1 U N M P R T S W A Motor DC motor, permanent magnet, totally enclosed, fan cooled B Drive Assembly Transfers power from DC motor to displacement pump D Displacement Pump Transfers fluid to be sprayed from source...

Page 5 - General Repair Information; Pressure Relief Procedure; CAUTION; Grounding

5 309941 General Repair Information Pressure Relief Procedure WARNING INJECTION HAZARD System pressure must be manuallyrelieved to prevent system from startingor spraying accidentally. Fluid under high pressure can be injected through skin and causeserious injury. To reduce risk of injury from injec...

Page 6 - Troubleshooting; Mechanical/Fluid Flow

6 309941 Troubleshooting Relieve pressure ; page 5. Mechanical/Fluid Flow TYPE OF PROBLEM WHAT TO CHECK If check is OK, go to next check WHAT TO DO When check is not OK refer to this column Low or No Fluid/Pressure Out-put 1. Spray tip worn 1. Follow Pressure Relief Procedure Warn- ing, then replace...

Page 7 - Electrical

7 309941 Troubleshooting Electrical Symptom: Sprayer does not run or stops running D Relieve pressure ; page 5. D Plug sprayer into correct voltage, grounded outlet D Set power switch OFF for 30 seconds and then ONagain. This ensures sprayer is in normal run mode. D Turn pressure control knob clockw...

Page 10 - Pressure Control Repair; 00 – 120 Vac North American and Japan/Taiwan Motor Control Board

10 309941 Pressure Control Repair 100 – 120 Vac North American and Japan/Taiwan Motor Control Board Removal 1. Relieve pressure ; page 5. Wait 5 minutes before servicing . 2. Fig. 3. Remove four screws (38) and cover (96). 3. Disconnect display connector (A) from motorcontrol board (95). 4. Remove b...

Page 11 - 40 Vac Motor Control Board

11 309941 240 Vac Motor Control Board Removal 1. Relieve pressure ; page 5. Wait 5 minutes before servicing . 2. Fig. 4. Remove four screws (38) and cover (96). 3. Disconnect display connector (A) from motorcontrol board (95). 4. Remove bottom two screws (39). Disconnectpotentiometer connector (C) f...

Page 15 - Pressure Adjust Potentiometer; Pressure Control Transducer

15 309941 Pressure Adjust Potentiometer Removal 1. Relieve pressure ; page 5. Wait 5 minutes before servicing . 2. Fig. 3, 4 or 5. Remove four screws (38) and cover (96). 3. Disconnect potentiometer connector (C) frommotor control board (95). 4. Remove pressure control knob (34) with a hexwrench. 5....

Page 16 - Drive and Bearing Housing Replacement; Disassembly; Assembly

16 309941 Drive and Bearing Housing Replacement CAUTION Do not drop gear cluster (89) when removing drivehousing (90). Gear cluster may stay engaged inmotor front end bell or drive housing. Disassembly 1. Relieve pressure ; page 5. 2. Remove screw (31), two nuts (24), pail hanger (55)and pump rod co...

Page 18 - Motor Replacement

18 309941 Motor Replacement Removal 1. Relieve pressure ; page 5. Wait 5 minutes before servicing . 2. Remove pump (91); Displacement Pump Re- placement , page 20. CAUTION Do not drop gear cluster (89) when removing drivehousing (90). Gear cluster may stay engaged inmotor front end bell or drive hou...

Page 20 - Displacement Pump Replacement

20 309941 Displacement Pump Replacement See manual 310643 for pump repair instructions. See manual 309943, 309944 or 309951 – 309954 forapplicable sprayer part number references. Removal 1. Flush pump (13). 2. Relieve pressure ; page 5. 3. Fig. 8. Remove screw (31) and slide pump rodshield (108) for...

Page 21 - Technical Data; Dimensions

21 309941 Technical Data Model 100–120V,A, Hz 220–240V, ∅ , A, Hz GeneratorMinimumW Motor HP (W) Cycles pergallon (liter) MaximumDelivery gpm(lpm) MaximumTip size Fluid Outletnpsm 1 Gun 2 Guns 695 14, 50/60 9, 50/60 5000 1.75 (1300) 243 (64) 0.75 (2.8) 0.027 N/A 1/4 in. 795 15, 50/60 10, 50/60 5000 ...

Page 22 - Graco Standard Warranty

22 309941 Graco Standard Warranty Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free fromdefects in material and workmanship on the date of sale by an authorized Graco distributor to the original purchaser for use. With theexceptio...