Instructions - Parts List ® High-Flo Pumps 311831E Designed for low pressure, high volume circulation of finishing materials. Do not use for flushing or purging lines with caustics, acids, abrasive line strippers, and other similar fluids. Important Safety Instructions Read all warnings and instructions in this manual. Save these instructions. See page 2 for Table of Contents and page 3 for List of Models, including maximum working pressures. Related Manuals Part No.
Contents Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 NXT Air-Powered Pumps . . . . . . . . . . . . . . . . . . 3 Viscount II Hydraulic-Powered Pumps . . . . . . . . 3 Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Mount the Pump . . . . . . . . . . . . . . . . . . . . . . . . . 6 Accessories . .
Models Models NXT Air-Powered Pumps Your model number is marked on the pump identification plate located toward the rear of the air motor. To determine the model number of your pump from the following matrix, select the six digits which describe your pump. The first digit is always J for circulation pumps. The remaining five digits define the construction. For example, a circulation pump with stainless steel construction, a 3.
Warnings Warnings The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclamation point symbol alerts you to a general warning and the hazard symbol refers to procedure-specific risk. Refer back to these warnings. Additional, product-specific warnings may be found throughout the body of this manual where applicable. WARNING EQUIPMENT MISUSE HAZARD Misuse can cause death or serious injury.
Warnings WARNING MOVING PARTS HAZARD Moving parts can pinch or amputate fingers and other body parts. • Keep clear of moving parts. • Do not operate equipment with protective guards or covers removed. • Pressurized equipment can start without warning. Before checking, moving, or servicing equipment, follow the Pressure Relief Procedure in this manual. Disconnect power or air supply.
Installation Installation Grounding Fluid supply container: follow local code. Object being sprayed: follow local code. The equipment must be grounded. Grounding reduces the risk of static and electric shock by providing an escape wire for the electrical current due to static build up or in the event of a short circuit. Pump: use a ground wire and clamp. Remove the green ground screw (Z) from the bottom of the air motor.
Installation Accessories Install the following accessories in the order shown in FIG. 3 and FIG. 4, using adapters as necessary. Hydraulic-Powered Pumps For typical installation, see FIG. 4 on page 10. Hydraulic Power Supply CAUTION The hydraulic power supply must be kept clean at all times to avoid damage to the motor and hydraulic power supply. Accessory Air Control Kits are available for the NXT Air Motor. The kits include a master air valve, air regulator, and filter. Order the kit separately.
Installation Hydraulic Return Line The hydraulic outlet on the motor is 1 in. npt. Use a minimum 5/8 in. (16 mm) ID hydraulic return line (S). • Return line shutoff valve (N): isolates the motor when servicing the system. CAUTION To avoid damage to the pump, never use the return line shutoff valve to control the hydraulic flow. Do not install any flow control devices on the hydraulic return line.
Installation Air-Powered Pumps M J M N P K L D G D E A N F D C B TI8435a FIG. 3: Typical Installation Key: A B C D E F G J K L M N P Mix Tank Pump Stand Fluid Supply Line; 2 in.
Installation Hydraulic-Powered Pumps P L J H Y R S M K T G D E D A T B D F C TI8436a FIG. 4: Typical Installation Key: A B C D E F G H J K L M N P R S T Y 10 Mix Tank Pump Stand Fluid Supply Line; 2 in.
Operation Operation Pressure Relief Procedure Trigger Lock Always engage the trigger lock when you stop spraying to prevent the gun from being triggered accidentally by hand or if dropped or bumped. 1. Engage trigger lock. Pump Operation 2. Air-Powered Pumps only: Close the bleed-type master air valve. Hydraulic-Powered Pumps only: Shut off the hydraulic supply line valve (H) first, then the return line valve (N). 3. Disengage the trigger lock.
Maintenance Maintenance Preventive Maintenance Schedule The operating conditions of your particular system determine how often maintenance is required. Establish a preventive maintenance schedule by recording when and what kind of maintenance is needed, and then determine a regular schedule for checking your system. Your maintenance schedule should include the following: Excessive Leaking at Throat If you see excessive leaking at the throat, tighten the packing nut (21), see FIG. 5.
Troubleshooting Troubleshooting 1. Relieve the pressure. 2. Check all possible problems and solutions before disassembling pump. To reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the Pressure Relief Procedure on page 15. PROBLEM Pump output low on both strokes. Pump output low on only one stroke. CAUSE Restricted air or hydraulic supply lines.
Repair Repair • To service the lower, see manual 311832. • To service the air motor, see manual 311238. • To service the hydraulic motor, see manual 308048. Disconnect the Lower 3. Insert the collars (G) into the coupling nut (K). Tighten the coupling nut onto the motor shaft (F) and torque to 145-155 ft-lb (196-210 N•m). 4. Flush and test the pump before reinstalling it in the system. Connect hoses and flush the pump. While it is pressurized, check for smooth operation and leaks.
Repair Viscount II Pump Shown E F H 1 G K C 3 3 B 1 Torque to 145-155 ft-lb (196-210 N•m). 2 Torque to 50-60 ft-lb (68-81 N•m). 3 Apply lubricant and PTFE tape. 2 D TI8385a FIG. 7 Reassemble the Tie Rods to the Motor Use this procedure only if the tie rods (C) have been disassembled from the motor. Screw the tie rods (C) into the base of the motor and torque to 50-60 ft-lb (68-81 N•m).
Repair 16 311831E
Parts Parts NXT Pumps Common Parts 101 Ref. No. Description 101 MOTOR, NXT, see manual 311238 102 103 104 105 106 107 108 Part No. Qty. see table, 1 below LOWER, High-Flo, see manual 311690 see table, 1 below NUT, coupling 186925 1 COLLAR, coupling 184129 2 ADAPTER, coupling 15H370 1 TIE ROD, 19.307 in. (490.
Parts Viscount II Pumps Common Parts 101 Ref. No. Description Part No. Qty. 101 MOTOR, Viscount II, see manual 223646 1 308048 102 LOWER, High-Flo, see manual 311832 see table, 1 below 103 TIE ROD, 12.72 in. (323 mm) between 180487 3 shoulders 104 NUT, lock, hex; 5/8-11 102216 3 105 NUT, coupling 186925 1 106 COLLAR, coupling 184129 2 107 ADAPTER, coupling; 2 in. npt; 2 in. see table, 1 bspp below 108 SEAL, 2 in.
Dimensions Dimensions Mounting Stand Hole Layout 160.2 mm (6.41 in.) 160.2 mm (6.41 in.) 30° A 30° 60° 277.5 mm (11.1 in.) B 185.0 mm (7.4 in.) radius Threaded 17 mm (0.68 in.) holes TI8381a Air-Powered Pumps Pump Model NXT cs NXT sst NXT severe-duty sst A in. (mm) 51.4 (1306) 51.4 (1306) 51.4 (1306) B in. (mm) 35.5 (901) 35.5 (901) 35.5 (901) Approx. Weight lb (kg) 180 (81.8) 180 (81.8) 180 (81.8) A in. (mm) 64.9 (1649) 64.9 (1649) 64.9 (1649) B in. (mm) 39.3 (998) 39.3 (998) 39.
Technical Data Technical Data NXT Air-Powered Pumps Model JX33XX JX44XX JX60XX Maximum Maximum Working Pressure Air Input Pressure psi (MPa, bar) psi (MPa, bar) 330 (2.3, 23) 440 (3.0, 30) 500 (3.4, 34) 100 (0.7, 7.0) 100 (0.7, 7.0) 75 (0.52, 5.2) Air Consumption See Performance Charts Maximum Fluid Flow at Fluid 60 cycles per Pump Cycles Temperature minute per Gallon Rating gpm (lpm) (Liter) °F (°C) 63 (237) 47 (178) 31 (118) 0.93 (0.24) 1.3 (0.34) 1.93 (0.
Technical Data Key A 0.7 MPa, 7 bar (100 psi) air pressure B 0.5 MPa, 4.9 bar (70 psi) air pressure C 0.3 MPa, 2.8 bar (40 psi) air pressure Test Fluid: No. 10 Weight Oil NXT 6500 with 3000cc Lower Pumps (JX44XX) psi (MPa, bar) 450 (3.10, 31.0) 200 A 400 (2.75, 27.5) 180 A 160 350 (2.41, 24.1) Fluid Pressure B 120 250 (1.72, 17.2) 100 200 (1.37, 137) C 80 C 150 (1.03, 10.3) Air Flow (scfm) 140 B 300 (2.06, 20.6) 60 100 (0.68, 68) 40 50 (0.34, 3.4) 20 0 20 (75.7) 10 (37.
Technical Data Viscount II 300 Pumps Models 243742, 243755, & 243756 Category Data Maximum Fluid Working Pressure 2.1 MPa 21 bar (300 psi) Maximum Hydraulic Fluid Pressure 10.3 MPa, 103 bar (1500 psi) Fluid Flow at 60 Cycles per Minute 237 liters/min (63 gpm) Cycles Per Liter (gallon) 0.24 (0.
Technical Data Viscount II 400 Pumps Models 243741, 243753, & 243754 Category Data Maximum Fluid Working Pressure 2.8 MPa, 28 bar (400 psi) Maximum Hydraulic Fluid Pressure 10.3 MPa, 103 bar (1500 psi) Fluid Flow at 60 Cycles per Minute 178 liter/min (47 gpm) Cycles Per Liter (gallon) 0.34 (1.
Graco Standard Warranty Graco warrants all equipment referenced in this document which is 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.
