P/N 3121269MARCH 2000

2These instructions are for use with Hydril ActuatorP/N 3121269 & P/N 3126581

To be used as a guideline for the Disassembly andAssembly of prior Hydril Actuator models P/N3115185, P/N 3117775, and P/N 3120335

Refer To Hydril Kellyguard and Actuator ManualManual 9602B to determine P/Ns, bolt and nuttorque's, and lubricant requirements

A ssembly and Disassembly Instructions

ACTUATOR P/N 3121269

3(1) PLASTIC MALLET(2) BLADE SCREW DRIVERS(1) 2.0 X 2.0 X 18.0 WOODEN BLOCK(1) 3/4 X 3/4 X 4.0 BRASS ROD(1) 1.0 X 3.0 NYLON STRAP(1) 2,000 LB. JIB HOIST

HAND TOOLS NEEDEDHAND TOOLS NEEDED

Tools needed in addition to therequired tool list in the Hydril KellyGuard Actuator Manual (# 9602b):

4FULLY ASSEMBLIED HYDRIL ACTUATOR

5 WITH THE ACTUATOR IN THIS POSITIONREMOVE (4) TIE ROD NUTS.

6 AFTER (4) TIE ROD NUTS ARE LOOSE REMOVEUPPER STATOR HOUSING

7 SET UPPER ROTOR ASSY ON TABLE

BE CAREFUL TO KEEP CLEAN

8 ACTUATOR ASSEMBLY WITH UPPERROTOR REMOVED

9 REMOVE CRANK RETAINER PLATE NUTS

(4) RETAINER NUTS

10 REMOVE (2) CRANK RETAINER PLATES

11

USE PLASTIC MALLET TO REMOVE(2) CRANK SHAFTS

12 UNSCREW (2) LOCATING PINS

13 REMOVE (2) LOCATING PINS COMPLETELY

14

USING A PLASTIC HAMMER AND PIECE OF WOOD,DRIVE PISTON DOWNWARD

ALTERNATE HITTING PISTON AT 180 DEGREESINTERVALS

15

ALTERNATE HITTING 180 DEGREES UNTILPISTON IS IN THE DOWN POSITION

16 LIFT OUTER CYLINDER UNTIL FREE

17

OUTER CYLINDER NOW FREE TO REMOVE

18

MAY NEED TODRIVE

PISTON FROMOUTER

CYLINDERUSING APLASTIC

HAMMER ANDWOOD WITHTHE OUTERCYLINDER

SUSPENDED

19

COMPLETELY REMOVE OUTER CYLINDERAND SET ASIDE

KEEP CLEAN

20

LIFT INNER CYLINDER TILL FREE THENCOMPLETELY REMOVE

21 REMOVE (4) TIE RODS

22 (4) TIE RODS REMOVED

23

REMOVE CRANKS ARMS FROM BOTH SIDES

24 REMOVE PISTON AND SET ASIDE

25

LIFT AND TURN OVER LOWER ROTOR ANDSTATOR ASSEMBLY

26

WITH THE LOWER ROTOR AND STATORASSEMBLY TURNED OVER, SET ON TABLE

27

REMOVE (8) HEX HEAD SCREWS FROM UPPERROTOR AND STATOR ASSEMBLY

28

USING A SMALL CHISEL AND PLASTIC HAMMER BENDBACK WASHER TABS TO ALLOW ACCESS TO REMOVE

(8) HEX HEAD BOLTS FROM THE LOWER ROTORAND STATOR ASSEMBLY

29

REMOVE (8) HEX HEAD SCREWS FROM LOWERROTOR AND STATOR ASSEMBLY

30

WITH (2) SCREW DRIVERS 180 DEGREES APARTSEPARATE LOWER ROTOR AND STATOR

ASSEMBLY

31

LIFT LOWER STATOR FROM LOWER ROTORAND SET ASIDE

32

REMOVE THE UPPER STATOR FROM UPPERROTOR AND SET ASIDE

33

USING A SCREW DRIVER CAREFULLY PRY OUTRETAINING RING FROM UPPER ROTOR

34

USING (2) SCREW DRIVERS CAREFULLY REMOVETHE RETAINING RING FROM THE UPPER ROTOR

35

RETAINING RING REMOVED FROM THEUPPER ROTOR

36

REMOVE RETAINING RING FROM LOWER ROTOR

37

USING A PLASTIC HAMMER AND A BRASS BAR,CAREFULLY DRIVE DOWN BEARING RETAINERRING AND BALL BEARING FROM UPPER ROTOR

38

USING A PLASTIC HAMMER AND A BRASS ROD,DRIVE DOWN BEARING RETAINER RING AND BALL

BEARING FROM LOWER ROTOR

39 REMOVE BALL BEARING FROM UPPER ROTOR

40 REMOVE RING BEARING RETAINER FROM

UPPER ROTOR

41 REMOVE BALL BEARING FROM LOWER ROTOR

42

REMOVE BEARING RETAINER RING FROMLOWER ROTOR

43 REMOVE (2) UPPER POLYPAK ROTATING INNER SEALSFROM BOTH THE UPPER AND LOWER STATORS

44

REMOVE (2) LOWER POLYPAK ROTATING INNER SEALSFROM BOTH THE UPPER AND LOWER STATORS

45

DISCARD (4) OLD/USED POLYPAK ROTATINGINNER SEALS

46 CAREFULLY REMOVE (2) OUTER PISTON SEALS

AND DISCARD

47

REMOVE AND DISCARD (2) INNERPISTON SEALS

48

ACTUATOR COMPLETELY DISASSEMBLIED ANDLAY OUT ON TABLE READY FOR REASSEMBLY

49

INSTALLATION OF POLYPAK ROTATING SEALS INUPPER AND LOWER STATORS

INSTALL FRONT OF SEAL IN BOTTOM AREA OF UPPERAND LOWER STATORS AND WORK SEAL CLOSE TO YOUINTO THE UPPER GROOVE

50

PULL SEAL INTO UPPER GROOVE AND WORK THE SEALINTO UPPER GROOVE AROUND THE ROTOR

INSTALL POLYPAK ROTATING SEAL INTO LOWERGROOVE OF BOTH UPPER AND LOWER STATORS

51

GREASE ROTATING SEAL AREA OF UPPER ANDLOWER ROTORS

52

PLACE UPPER BEARING RETAINER RINGINSIDE BOTTOM AREA OF UPPER ROTOR

53 INSTALL BALL BEARING IN UPPER ROTOR

54

USING A PLASTIC MALLET, TAP BALLBEARING INTO PLACE

55 USING HANDS, INSTALL RETAINING RING

INTO GROOVE

56 LOWER UPPER STATOR DOWN ONTO

UPPER ROTOR

57 INSTALL (8) HEX HEAD CAP SCREWS

AND TIGHTEN

58 TIGHTEN (8) HEX HEAD BOLTS

59 PLACE LOWER BEARING RETAINER RING INTO

BOTTOM OF LOWER ROTOR

60

PLACE AND INSTALL BALL BEARING INTO LOWERROTOR

USING A PLASTIC MALLET, TAP BALL BEARINGINTO PLACE

61

USING HANDS INSTALL RETAINING RING INTOLOWER ROTOR

62 PLACE LOWER STATOR OVER LOWER ROTOR

63

INSTALL (8) TAB WASHERS AND (8) HEX HEADSCREW AND TIGHTEN

64

USING A SMALL METAL CHISEL, BEND WASHERTABS INTO A LOCK POSITION AROUND

HEX HEAD SCREWS

65 INSTALL OUTER PISTON SEALS

66 INSTALL INNER PISTON SEALS

67 NOTE LOCATION OF LOCATING SLOT

68

PLACE PISTON ONTO LOWER STATOR AND ROTORASSEMBLY

NOTE: PISTON LINK MUST BE POINTING AWAY FROMLOCATING PIN AS SHOWN IN PICTURE

69 INSTALL (4) TIE RODS AND TIGHTEN

70 (4) TIE RODS INSTALLED

71 INSTALL (4) CRANK ARMS

72

(4) CRANK ARMS INSTALLED

73 GREASE OUTSIDE OF INNER CYLINDER PRIOR

TO INSTALLATION

74 LOWER INNER CYLINDER INTO LOWER ROTOR

75 NOTE: INNER CYLINDER LOCATING PIN AT BOTTOM I.D.

OF CYLINDER AND THE LOCATING GROOVE IN ROTOR

76

USING A PLASTIC MALLET, TAP INNER CYLINDER INTOPOSITION

WATCH TO MAKE CERTAIN LOCATING PIN ON BOTTOMOF INNER CYLINDER LINES UP WITH LOCATINGGROOVE IN ROTOR

77 GREASE I.D. OF OUTER CYLINDER

78

LOWER OUTER CYLINDER DOWN ONTO LOWER ROTOR

NOTE: MAKE CERTAIN TO LINE UP THE LOCATINGNOTCH IN THE OUTER CYLINDER WITH THE LOCATINGPIN ON THE LOWER ROTOR, SEE PICTURE

79

ONCE AGAIN: MAKE CERTAIN LOCATING NOTCHAND PIN ARE LINED UP CORRECTLY AS OUTER

CYLINDER IS LOWERED INTO PLACE

80

USING A PLASTIC MALLET TAP OUTERCYLINDER IN PLACE

81 INSTALL (2) LOCATING PINS AND TIGHTEN

82 INSTALL 2ND LOCATING PIN

83

PREPARE FOR ISTALLATION OF (2) CRANK SHAFTS

NOTE LOCATION OF THE (2) KEYS IN THE SHAFTSPRIOR TO INSTALLATION

84

PRIOR TO INSTALLING CRANK SHAFTS USE FINGERTO POSITION CRANK ARMS PRIOR TO THE

INSTALLION OF THE CRANK SHAFT

85

INSTALL (2) CRANK SHAFT

NOTE: POSITION OF INDICATING NOTCH ON CRANKSHAFT MUST BE IN THE UP POSITION

86 BOTH CRANK SHAFTS INSTALLED

87

INSTALL (2) CRANK RETAINER, (4) CRANKLOCKWASHERS, (4) CRANK RETAINER

LOCKNUTS AND TIGHTEN

88

LOWER UPPER ROTOR ASSEMBLY DOWN ONTO (4) TIEROD BOLTS

NOTE: PLACE (4) TIE ROD HEX NUTS LAYING LOOSE INTHE (4) MILLED SLOT AREAS IN ROTOR PRIOR TOLOWERING ROTOR INTO PLACE

89

NOTE: MAKE CERTAIN TO LINE UP THELOCATING NOTCH AND LOCATING PIN

BEFORE TAPPING INTO PLACE

90

NOW CAREFULLY START THE (4) TIE ROD HEXNUTS AND TIGHTEN EVENLY

91 A FULLY ASSEMBLIED UNIT

92

PRIOR TO MOUNTING ONTO A KELLY GUARD

PLACE (2) MOUNTING SLEEVE HALVES TOGETHERWITH THE RETAINING GROOVE UP

INSTALL RETAINING RING

93

PRIOR TO PLACING ACTUATOR OVER THE MOUNTINGSLEEVES AND KELLY GUARD USE (2) ALLEN WRENCHS

TO ROTATE THE CRANKS IN THE POSITION SHOWN

94

IF FURTHER INFORM A TION ISNEEDED REGARDING THE

HYDRIL ACTUATOR,

CONTACT HYDRIL COMPA N Y , HTC,

HOUSTON, TEX A SPHONE # 1-281-449-2000SA L ES AND MARKETINGFA X # 1-281-985-8665

OR CONTACT THELOC A L H YDRIL SA L ES AND SERV ICE. CENTER IN YOUR AREA