Alemite 7175-R4 Service Manual Download Page 2

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SER 7175-R4

High-Pressure Grease Pump

Revision (2-13)

Alemite, LLC

Section

Page

Description..................................................................... 1

Pressure Switch............................................................. 1

Emergency Bypass System........................................... 1

Bleed/Prime Assembly ................................................. 1

Specifications................................................................. 1

Sump ............................................................................. 1

Motor ............................................................................ 1

Preventive Maintenance ................................................. 3

Overview of Product Flow ........................................... 12

Power Train ................................................................ 12

Valve Body ................................................................. 12

Pressure Switch Port ............................................. 14

Emergency Bypass Port ........................................ 14

Bleed/Prime Assembly Port .................................. 14

Priming ............................................................ 14

Remove and Replace .................................................... 15

Motor .......................................................................... 15

Pressure Switch........................................................... 16

Initial Preparation ........................................................ 17

Pump Overhaul ............................................................ 17

Breakdown .................................................................. 17

Container and Accessories .................................... 17

Helicoid Housing Assembly ................................. 17

Base Assembly Peripherals................................... 17

Pressure Switch and Valve Body Assembly ......... 17

Additional Base Assembly Peripherals................. 18

Motor and Body Assembly ................................... 18

Gear Train Assembly ............................................ 18

Section

Page

Disassembly ............................................................... 18

Planetary Gear Body............................................. 18

Valve Body ........................................................... 18

Pressure Switch .................................................... 19

Clean and Inspect ....................................................... 19

Gear Train............................................................. 19

Assembly .................................................................... 19

Planetary Gear Body............................................. 19

Pressure Switch .................................................... 20

Valve Body ........................................................... 20

Rebuild ....................................................................... 21

Gear Train Assembly............................................ 21

Valve Body, Gear Body, and Motor..................... 21

Electrical Connection ........................................... 22

Combine Pressure Switch with Valve Body ........ 22

Initial Test ....................................................... 22

Helicoid Housing.................................................. 23

Container and Accessories ................................... 23

Initial Priming ................................................. 23

Complete the Rebuild Assembly .......................... 23

Final Priming .................................................. 24

Operation and Adjustments ........................................ 24

Pressure Settings Check ....................................... 24

Pressure Switch Adjustment ........................... 24

Emergency Bypass Mechanism Adjustment .. 25

Motor Overhaul ........................................................... 26

Disassembly ............................................................... 26

Clean and Inspect ....................................................... 26

Assembly .................................................................... 26

Troubleshooting Chart ................................................. 28

Table of Contents

Figure Title

Page

High-Pressure Grease Pump Model 7175-R4 ................. 1

High-Pressure Grease Pump - Exploded View ............... 4

High-Pressure Grease Pump - Exploded View ............... 6

Pressure Switch and Valve Body Assembly

Exploded View ........................................................... 8

Pressure Switch Assembly - Exploded View ................ 10

High-Pressure Grease Pump Power Train .................... 12

High-Pressure Grease Pump Wetted Path ..................... 13

Figure Title

Page

High-Pressure Z-Swivel - Exploded View ................... 14

Position of Planetary Gears in Gear Body ................... 15

Electrical Switch Wire Connections ............................ 16

Pressure Switch Assembly - Section View .................. 20

Priming Mechanism, Pressure Switch, and Emergency

Bypass Mechanism Adjustments.............................. 23

High-Pressure Test Gauge Assembly - Model 5287..... 25

Motor - Exploded View ............................................... 27

List of Illustrations

Summary of Contents for 7175-R4

Page 1: ...y The pump delivers 14 ounces 0 40 kg of NLGI No 1 grease at 70 F 21 C each minute Heavy fibrous grease is pumped at a rate of 5 1 2 ounces 0 16 kg per minute Pressure Switch A pressure switch maintains lubricant pressure between 3500 and 5000 psi 241 345 Bars This switch assembly acts as the on off switch during control valve operation Emergency Bypass System A pressure relief valve operates as a...

Page 2: ... and Motor 21 Electrical Connection 22 Combine Pressure Switch with Valve Body 22 Initial Test 22 Helicoid Housing 23 Container and Accessories 23 Initial Priming 23 Complete the Rebuild Assembly 23 Final Priming 24 Operation and Adjustments 24 Pressure Settings Check 24 Pressure Switch Adjustment 24 Emergency Bypass Mechanism Adjustment 25 Motor Overhaul 26 Disassembly 26 Clean and Inspect 26 Ass...

Page 3: ...h 1 Inspect for Product and or Oil Leakage 2 Check Sump Oil Level 1 Inspect Hose and all Rubber Components for signs of Deterioration 2 Tighten all Connections 3 Clean Valve Body Check Valve 1 Change Sump Oil 2 Inspect Motor Brushes 3 Lubricate Front Wheel Bearings 2 Table 2 High Pressure Grease Pump Model 7175 R4 Preventive Maintenance Schedule ...

Page 4: ...SER 7175 R4 High Pressure Grease Pump Revision 2 13 4 Alemite LLC Figure 2 A High Pressure Grease Pump Exploded View ...

Page 5: ...70345 36 19 Setscrew 3 8 16 x 1 2 2 170770 25 20 172207 1 Washer Lock 1 4 11 170860 38 21 Screw 1 4 20 x 1 4 172207 1 20 22 316497 3 Support Rear RH 1 172207 3 18 23 337111 Motor Assembly Electric w o Terminals 1 See Figure 11 172211 1 19 24 Screw 3 8 16 x 1 1 4 6 172212 17 30 25 Setscrew 8 32 x 1 2 1 316497 3 22 26 316498 3 Support Rear LH 1 316498 3 26 27 317254 Axle 1 316599 35 28 Spacer 1 OD x...

Page 6: ...SER 7175 R4 High Pressure Grease Pump Revision 2 13 6 Alemite LLC Figure 2 B High Pressure Grease Pump Exploded View ...

Page 7: ...m and Shaft Assembly 1 316540 81 64 316884 Key 1 8 x 3 16 x 1 3 16 Long 1 316558 83 65 320507 Washer Thrust 1 1 4 OD x 0 635 ID x 0 156 Thk 1 316838 4 82 66 Screw 3 8 16 x 1 1 4 4 316843 63 67 316155 Shaft 2 316844 55 68 171001 11 O Ring 9 16 ID x 3 4 OD 2 316845 56 69 317979 Seal Oil 1 316847 53 70 Body Gear 1 316848 51 71 316153 Gear Planetary 2 316874 47 72 316883 Gear Ring 1 316876 50 73 31615...

Page 8: ...SER 7175 R4 High Pressure Grease Pump Revision 2 13 8 Alemite LLC Figure 2 C Pressure Switch and Valve Body Assembly Exploded View ...

Page 9: ... 16 20 1 316546 91 98 320383 Bolt Clamp 9 16 18 1 316551 106 99 316631 Gasket 1 03 OD Aluminum 1 316631 99 100 171001 12 O Ring 13 16 OD x 5 8 ID 2 317078 96 101 316545 Switch Assembly Pressure 1 See Figure 2 D 318141 105 102 302225 Screw Bleed Valve 1 4 32 1 318987 94 103 47124 Seat Bleed Valve 1 4 32 x 1 8 NPTF m 1 318988 95 104 314821 Adapter 1 20 x 1 8 NPTF f 1 318989 97 105 Gasket 0 92 OD Alu...

Page 10: ...SER 7175 R4 High Pressure Grease Pump Revision 2 13 10 Alemite LLC Figure 2 D Pressure Switch Assembly Exploded View ...

Page 11: ...8 1 129 120 317938 Pilot and Disc Assembly 1 316549 118 121 170308 Screw 10 32 x 5 16 2 316597 110 122 Washer Lock 10 2 316598 108 123 Housing Switch 1 316632 123 124 Switch Electrical 1 317078 126 125 Screw 1 1 16 20 1 317938 120 126 317078 Locknut 1 1 16 20 1 318139 109 127 Washer Lock 6 2 335949 1 124 128 Screw 6 40 x 1 4 2 336660 119 129 Bracket 1 336661 117 130 336662 Spring 3 41 Long 1 33666...

Page 12: ...ade Assembly and the Helicoid Flight Assembly These components rotate to pull product from the container into the Helicoid Housing and into the Base From the passageway in the Base product is pumped into the Valve Body via the Piston and Cylinder assembly See Figure 4 Valve Body The Valve Body contains several ports and passageways During normal operation product enters and fills all the ports ind...

Page 13: ...High Pressure Grease Pump SER 7175 R4 Alemite LLC 13 Revision 2 13 Figure 4 High Pressure Grease Pump Wetted Path ...

Page 14: ... to flow out of the Valve Body Product re enters the Base and returns to the Piston and Cylinder Assembly CAUTION Do not allow the pump to continue to operate in this mode Damage to the motor and drive train components can occur Remove the electrical cord from the outlet Bleed Prime Assembly Port This port Port C allows any air trapped within the wetted path up to the Valve Body to escape to atmos...

Page 15: ...ssure within the system prior to performing any procedure Disconnect the electrical cord from the 120 V ac source Into an appropriate container operate the control valve to discharge remaining pressure within the assembly Never point a control valve at any portion of your body or another person Accidental discharge of pressure and or material can result in injury Read each step of the instructions...

Page 16: ...e four wires from Electrical Switch 124 6 Remove Screws 128 and Lock Washers 127 that secure the Electrical Switch to the Bracket Remove the Electrical Switch Note Refer to pages 19 20 for pressure switch disassembly to remove the bracket 129 Note the caution on page 20 to remove the screw 125 7 Remove electrical switch 8 Install first lock nut on the switch See fig 8 until it bottoms on the threa...

Page 17: ...dle and Bracket Assembly 3 Remove Nuts 5 from both Rods 6 as required 4 Remove Screw 45 and Washer 18 that secures Blade and Helix Arm Assembly 46 to Shaft and Helicoid Flight Assembly 47 Remove the Blade and Helix Arm Assembly 5 Remove Screws 36 and Lock Washers 20 that secure Disc 44 to Helicoid Housing 50 Remove the Disc 6 Remove Screws 2 that secure the Reinforcement Rings 3 and Container to t...

Page 18: ...s from Worm and Shaft assembly 63 37 Remove the Worm and Shaft assembly from Bearing 60 38 Remove Thrust Washers 62 and 65 from the Worm and Shaft assembly 39 Separate Connecting Link 73 and Spacer 77 from the Ring Gear 40 Remove Bearing 60 from the Base Use care not mar the internal surface of the Bearing Disassembly Planetary Gear Body 1 Remove both Shafts 67 that secure Planetary Gears 71 to Ge...

Page 19: ...rom Valve Body as needed Pressure Switch NOTE Refer to Figure 2 D for component identification 21 Loosen Locknut 126 IMPORTANT Record the distance from the top of the screw 125 and bottom of the bracket 129 Distance should be approxi mately 7 8 22 2 mm Refer to Figure 8 22 Remove Screw 125 from Switch Body 119 and Bracket 129 IMPORTANT Overcome the spring tension durring removal of the screw 125 2...

Page 20: ...crew sufficiently to properly crush the Gaskets Use a wide blade tool 9 Install Gasket 109 into the Switch Body 10 Screw Plug 108 into the Switch Body Figure 8 Pressure Switch Assembly Section View Tighten securely 11 Turn the Switch Body end for end 12 Install Pilot and Disc assembly 120 large diameter first into the Switch Body 13 Install Spring 130 into the Switch Body 14 Thread Locknut 126 ont...

Page 21: ...into the Valve Body Tighten securely to properly crush the Copper Gasket 36 Position Gasket 89 to the Valve Body Hold in place with spots of grease Rebuild NOTE Refer to Figures 2 A 2 B 2 C and 2 D for component identification on all Rebuild procedures Gear Train Assembly 1 Install Thrust Washer 56 and O Ring 57 onto the bottom of Shaft 55 2 Install Intermediate Gear Train 54 large diameter downwa...

Page 22: ...he Hose securely 26 Guide Material Hose 10 through the Grommet 27 Turn the pump assembly upward and face the bottom 28 Screw the 1 4 NPTF end of the Adapter w thread sealant into the Valve Body Tighten the Adapter securely Electrical Connection 29 Install Electrical Cord 7 through Grommet 35 in Rear Support 26 if removed Make sure to orientate Cable Clamp 33 properly Guide the Electrical Cord thro...

Page 23: ...cross pattern 54 Align Disc 44 to the hole pattern on the Helicoid Housing 55 Install Lock Washers 20 and Screws 36 that secure the Disc to the Helicoid Housing Tighten the Screws securely Initial Priming NOTE Fill the center of the Helicoid Hous ing with gear oil Oil allows the pump to prime quickly To open the priming mechanism 56 Turn the Bleed Valve Screw counterclockwise See Figure 9 CAUTION ...

Page 24: ...process Pump may lose prime 72 Place the Control Valve assembly into a collection container 73 Plug the Electrical Cord into a 120 V ac outlet IMPORTANT Do not allow the Container to run dry of oil Pump prime will be lost If product was used for initial priming it is not necessary to eliminate oil from the system 74 Allow the pump to run until product appears and is free of air 75 Unplug the Elect...

Page 25: ...he gauge once the pump turns on The reading must be between 3200 and 3900 psi 220 7 269 Bars If the reading is not to specifications replace Pressure Switch Spring 130 See Figure 2 D 13 Close the Bleed Screw on the gauge assembly Emergency Bypass Mechanism Adjustment 14 Once again operate the Control Valve and allow the pump to turn off 15 Loosen the Locknut on the Spring Housing if necessary See ...

Page 26: ...tscrews 8 that secure the Brush Holder assembly to the Motor Housing 14 Remove the Brush Holder assembly Position an appropriate size socket on the assembly from inside the Motor Housing Place an extension on the socket through the opposite opening in the Housing Tap the extension with a small hammer Clean and Inspect 1 Clean all metal parts in a modified petroleum based solvent The solvent should...

Page 27: ...h 2 2 Housing End 1 12 Washer 2 3 Washer Loader Spring Special 1 13 Spacer 2 4 Bearing 2 14 Screw 10 24 x 3 1 2 2 5 Armature 1 15 Baffle 1 6 Ring Retaining 1 16 Field Assembly 1 7 Bushing 1 17 Connector 2 8 Setscrew 10 24 2 18 Housing Motor 1 9 393483 6 Cap 2 19 Cord 1 10 393483 7 Brush and Spring Assembly 2 20 Terminal not part of assembly 2 Legend Part numbers left blank are not available separa...

Page 28: ...ing Assembly 10 into its proper Brush Holder Assembly Make sure the direction of the Brush is correct 16 While seating the Brush and Spring Assembly screw Caps 9 into the Brush Holder Assembly 17 Install Bushing 7 over the wire and into the Motor Housing Make sure the small diameter faces the Motor Housing Use a punch and small hammer Troubleshooting Chart Pump Indications Possible Problems Soluti...

Page 29: ...eplace Gasket 58 3 Replace Gasket 16 Sump oil leakage visible at Base 82 1 Gear Body Screws 66 not sufficiently tight 2 Worm or damaged O Ring 61 3 Shaft Nut 76 not sufficiently tight 4 Worm or damaged Shaft O Ring 57 5 Setscrew 78 not sufficiently tight 6 Damaged Gasket 79 7 Drain Plug 74 not sufficiently tight 1 Tighten Screws 66 2 Replace O Ring 61 3 Tighten Nut 76 4 Replace O Ring 57 5 Tighten...

Page 30: ...SER 7175 R4 High Pressure Grease Pump Revision 2 13 30 Alemite LLC ...

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