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Page 9

 

12/23/08

 

DKY

DATE

DATE

4010 320TH ST. PO BOX 189

   BOYDEN, IOWA 51234

THE DRAWING AND ALL 

INFORMATION THERE 

ON ARE THE PROPERTY OF 

DEMCO

TOLERANCES

pp2manclutch 

DRAWN BY

ENG APPOV.

DESCRIPTION

DRAWING.  NO.

REV

SCALE: 1:8

SHEET 1 OF 1

_

DOUBLE PISTON PUMP W/ CLUTCH

.X     =  .060     MIN. MACHINE SURFACE  250

.XX   = ±.030      BREAK ALL SHARP EDGES 

.XXX = ±.010      BEND AND DRAFT 

 ±1°

 UNLESS OTHERWISE 

SPECIFIEDALL DIMENSIONS 

ARE IN INCHES

THIRD ANGLE 

PROJECTION

MANUAL CLUTCH PARTS 

bREAKDOWN

 

REF. 

PART 

QTy. 

  NO. 

NO. 

PP1  PP2 

DESCRIPTION

 

1

1

1

24

26

29

46

40

15

43

33

23

34

35

38

15

16

16

37

37

45

41

1

42

44

18

13

A

10

11

9

9

8

7

2

1

6

5

5

3

2

11
10

4

4

31

Bolt the throw out arm bracket (#40) and arm assembly (preas-

sembled at factory) to the top of the pump using two 3/8” bolts.  

The 1-1/2” long bolt should be used to attach the return spring 

bracket (#20).  Connect the return spring (#21) and remove 

any remaining shipping tape from the assembly.  Loosen set 

screw  (#1)  in  clutch  throw  out  shaft  connector  (#42).   Turn 

connector, 

not the shaft

, until holes align for the 5/16” x 1-1/2” 

bolt (#44) to pass through connector and Yoke (#14).  Lock 

connector in place by tightening jam nut (#41).  Grease the 

zerk in the throw out ratchet casting (#33) before using the 

pump and as needed thereafter.  An occasional drop of oil to 

the other moving parts of the clutch will prevent unnecessary 

wear.  Check to make sure the clutch completely disengages. 

The sprocket casting should turn freely.  The handle should 

return to engage the next cog in the throw out ratchet casting 

when the clutch is tripped.

 

Important:

   

Make  sure  the  clutch  throw  out  yoke  pegs  fit 

loosely  in  the  groove  in  the  clutch  yoke  casting  when  the 

clutch is engaged.  

Attach the pull rope to the eye in the throw out handle to permit 

operation of clutch from the tractor cab.  To change the direc-

tion of pull for the clutch handle, simply remove the handle 

and install it in the opposite position.  Then re-hook the throw 

out pawl spring in the other hole in the throw out pawl and 

move the spring return bracket to the other side of the handle 

assembly and re-hook the return spring.  Make sure the pawl 

works freely on the side of the throw out arm plate.

ADjUSTMENT INSTRUCTIONS

yOKE 

PEG

16

28

25

26

27

25

10

17

15

16

10

11

14

10

11

12

20

21

19

22

36

32

30

NOTE: Clutch Throw out yoke must be positioned as  

 

  shown, with block “A” facing the pump.

45 45

45

  1. 

00087  

5/16” x 5/16” Cup Point Set Screw 

 

 

2.

 

01598-95 

1-1/4” I.D. Lock Collar

  3. 

01193

 

Clutch Spring

 

4.

 

01976  

1/8” x 1/2” Roll Pin

  5. 

01549  

1/4” x 1/4” x 1-5/8” Key

  6. 

01184 1 1/4-30  

1-1/4” I.D. Clutch Yoke

  7. 

01183 1 1/4-30  

1-1/4” I.D. Sprocket Casting (18 tooth)

  8. 

01979  

1-1/4” I.D. 18 Ga. Machine Washer

  9. 

01498-30 

Pump Side Plate

  10. 

00061 

3/8”-16UNC Hex Nut

  11. 

00060 

 

3/8” Lockwasher

  12. 

02056 

 

3/8”-16UNC x 11-1/2” Hex Head Bolt

  12. 

00613 

 

3/8”-16UNC x 6” Hex Head Bolt Gr. 5

  13. 

00173 

 

1/2”-13UNC Locknut

  14. 

01576-30

 

Clutch Throw Out Yoke

  15. 

00059 

 

3/8” Flatwasher

  16. 

00523

 

3/8”-16UNC x 1.25” Hex Head Bolt Gr. 5

  17. 

00349 

 

1/2”-13UNC x 6” Hex Head Bolt Gr. 5

  18. 

01525-30

 

Piston Pump Top Bracket

  18. 

01526-30

 

Piston Pump Top Bracket

  19. 

02057 

 

3/8”-16UNC x 12” Hex Head Bolt 

 

  19. 

04219 

 

3/8”-16UNC x 6-1/2” Hex Head Bolt Gr. 5

  20. 

01527-30

 

Throw Out Arm Return Spring Bracket

  21. 

01547 

 

Throw Out Arm Return Spring

  22. 

01211-30

 

Throw Out Arm Extension Handle

  23. 

01982 

 

3/32” x 1-1/4” Cotter Key

  24. 

01983 

 

#10  x 2-1/2” Round Head Stove Bolt

  25. 

07490 

 

3/16” Flatwasher

  26. 

01212-95

 

Throw Out Roller

  27. 

01985 

 

5/16” x 2” Roll Pin

  28. 

01986 

 

#10 Nut

  29. 

01214-95

 

Throw Out Shaft

  29. 

01565-95

 

Throw Out Shaft

  30. 

01548 

 

Throw Out Pawl Spring

  31. 

01987 

 

3/8”-16UNC x 2-1/2” Full Thread Hex Head Bolt

  32. 

01185 

 

Throw Out Pawl

  33. 

01186-30

 

Throw Out Pawl Ratchet Casting

  34. 

00062 

 

1/4”-20UNC Hex Nut

  35. 

04055

 

1/4”-20UNC x 1” Hex Head bolt

  36. 

01213-30

 

Throw Out Arm Plate

  37. 

02592 

 

3/8”-16UNC Nylon Insert Locknut

  38. 

00496

 

5/8” Machine Washer

  39. 

00914 

 

3/8”-16UNC x 1-1/2” Hex Head Bolt Gr.5

  40. 

01216-30

 

Throw Out Arm Bracket

  41. 

00489 

 

5/8”-11UNC Jam Nut

  42. 

01215-95

 

Clutch Throw Out Shaft Yoke Connector

  43. 

02802 

 

5/16”-18UNC Nylon Insert Locknut

  44. 

00372 

 

5/16”-18UNC x 1-1/2” Hex Bolt Gr. 5

  45. 

05023 

3/16

 Grease Zerk

  46. 

05587

 

1.00

 X 14GA Machine Washer

  47. 

01575-30

 

Top Pivot Yoke Link

  48. 

02528

 

Clevis Pin

  49. 

00009

 

1/8” Cotter Pin

47

48

49

Summary of Contents for LIL'THUMPER

Page 1: ...Page 1 AP20005 Rev 14 01 16 LIL THUMPER Piston Pump...

Page 2: ...anner Table of Contents General information 2 Bolt Torque 3 Mounting the Pump and Lubrication Requirements 4 Rate Adjustment and Start up Procedure 5 Suggested Plumbing 6 Single and Double Piston Part...

Page 3: ...alues by 5 GRADE or CLASS value for bolts and capscrews are identified by their head markings Torque Specifications Bolt Torque for Standard bolts GRADE 2 GRADE 5 GRADE 8 A lb ft N m lb ft N m lb ft N...

Page 4: ...ound all stackpack surfaces and increases the life of the stackpack considerably Repeat this procedure every six hours of use thereafter Keep the holes at the bottom of the necks clear of dirt and oth...

Page 5: ...rate for the Lil Thumper is determined by using the slide chart included with the pump Complete instructions are on the back of the slide chart Pump output is determined by the drive wheel loaded radi...

Page 6: ...h your pump PRESSURE MUST NOT EXCEED 100 PSI PUMP SPEED MUST NOT EXCEED 210 RPM Optimum operating pressure is 20 40 psi Use of a check valve in each discharge is recommended SUCTION AND DISCHARGE LINE...

Page 7: ...7 17 46 34 27 27 2 1 12 10 44 45 46 66 62 11 46 52 31 53 40 28 1 29 46 45 44 26 18 24 25 25 26 31 22 22 19 46 44 45 33 62 49 49 48 47 63 43 36 55 23 57 4010 320T BOYDE THE DRA INFOR ON ARE INLET OUTLE...

Page 8: ...1 4 O D Main Shaft for PP2 39 01979 2 1 1 1 4 I D 18 Ga Machine Bushing 40 01989 1 1 1 4 x 1 4 x 1 Key 41 12489 1 2 Piston Rod Guide Bushing O Ring 42 01992 1 2 Piston Rod Guide Bushing 43 01993 1 2...

Page 9: ...he side of the throw out arm plate ADJUSTMENT INSTRUCTIONS YOKE PEG 16 28 25 26 27 25 10 17 15 16 10 11 14 10 11 12 20 21 19 22 36 32 30 NOTE Clutch Throw out Yoke must be positioned as shown with blo...

Page 10: ...B This exposes the valves inletvalvesonbottom blue C andoutletvalveson top red D Remove valve o rings E making sure valves are clear of matter and in proper working condition 2 Remove center large cyl...

Page 11: ...s D and o rings E on the top side in an upward direction and replace outlet manifold B clamps A and bolts Do Not Tighten Clamps 8 Replace the blue valves C and o rings E on bottom side in an upward di...

Page 12: ...tackpack retainer assembly H A A B E F D C AA A A C D G 2 Remove large clamp A Proceed by pulling the Piston Large O ring C Small O ring D and the cylinder hous ing assembly AA off of the piston rod G...

Page 13: ...drive wheel with a radius of 17 and the wheel that presses against it has a radius of 6 5 we can simply divide the drive wheel radius 17 by the press wheel radius 6 5 This gives a ratio of 2 615 to 1...

Page 14: ...ch can shorten the life of your pump A high pressure spray washer is recommended to remove dirt and chemicals from the pump and clutch assemblies after each use Cover the vent hole in the 1 4 breather...

Page 15: ...ff valve between tank and pump Remove the inlet and outlet hoses and inlet manifold plugs Using a long thin rod drain the inlet valve by pump ing the rod up and down into each of the inlet manifold pl...

Page 16: ...sure they are in good condition 4 CONTROLS Check for leakage plugging or wear on all valves fit tings etc Clean off any build up of foreign material 5 PUMP Check to be sure pump turns freely 6 FRAME B...

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