RN80P Service Manual

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RN80P Service Manual | Manualzz

DESIGN SERIES 004

RUFNEK 80

SERVICE MANUAL

INTRODUCTION AND THEORY OF OPERATION ..................................................................................... 2

ASSEMBLY NUMBER EXPLANATION ...................................................................................................... 2

WINCH MODEL CODES .............................................................................................................................. 2

MAINTENANCE............................................................................................................................................ 5

GENERAL DISASSEMBLY.......................................................................................................................... 6

A.

MOTOR DISASSEMBLY................................................................................................................................................................6

B.

BRAKE SECTION DISASSEMBLY ................................................................................................................................................7

C.

DRUM SECTION DISASSEMBLY .................................................................................................................................................8

D.

GEAR SECTION DISASSEMBLY................................................................................................................................................10

E.

INPUT PLANET SET DISASSEMBLY..........................................................................................................................................11

F.

SECONDARY PLANET SET DISASSEMBLY..............................................................................................................................12

G.

OUTPUT PLANET SET DISASSEMBLY .....................................................................................................................................12

GENERAL ASSEMBLY.............................................................................................................................. 12

H.

OUTPUT PLANET SET ASSEMBLY ...........................................................................................................................................12

I.

SECONDARY PLANET SET ASSEMBLY .....................................................................................................................................12

J.

INPUT PLANET SET ASSEMBLY ................................................................................................................................................12

K.

GEAR END ASSEMBLY ..............................................................................................................................................................12

L.

DRUM SECTION ASSEMBLY ......................................................................................................................................................12

M.

BRAKE SECTION ASSEMBLY ...................................................................................................................................................12

N.

MOTOR ASSEMBLY ...................................................................................................................................................................12

TROUBLESHOOTING................................................................................................................................ 12

RUFNEK 80 BILL OF MATERIAL ............................................................................................................. 12

VISCOSITY CHART ................................................................................................................................... 12

TORQUE SPECIFICATIONS CHART........................................................................................................ 12

RUFNEK 80 ISOMETRIC DRAWING ........................................................................................................ 12

SEL-0041-004.DOC

REV-0

INTRODUCTION AND THEORY OF OPERATION

The Rufnek series planetary winch is designed to use a high-speed gear motor, driving through a multiple disc brake, through three planet sets to the cable drum.

The multiple-disc brake is spring applied and hydraulically released through a port in the brake housing. During inhaul, the brake is not released since the load is driven through the one-way cam clutch, bypassing the brake. When the load comes to a stop, the cam clutch locks up and the load is prevented from moving by the brake.

The brake and brake valve receives its signal any time the winch is in pay out. With the brake fully open at about 340 PSI the brake valve will open and dynamically control the lowering of the load.

ASSEMBLY NUMBER EXPLANATION

This manual is for design series 004. In the case of a major design change implementation, a new design series designation number will be issued for the winch. A new manual will also be created for that specific design series.

DESIGN

ASSEMBLY # SERIES

82021 004

WINCH MODEL CODES

Gear Type

W=Worm

P=Planetary

Drive Type

H=Hydraulic

M=Mechanical

Gearbox Position

L=Left

R=Right

(viewed from rear of truck)

Input Shaft Location

F=Front

R=Rear

X=Does not apply

(viewed from rear of truck)

Motor Type

1. Single Speed Gear Motor

2. Two Speed Gear Motor

3. Single Speed Geroler Motor

4. Two Speed Geroler Motor

5. Piston

6. Vane

X. No Motor

Clutch Device

M=Mechanical

A=Air

Cable Spooling

O=Over Drum

U=Under Drum

(viewed from rear of truck)

2

FAILURE TO HEED THE FOLLOWING WARNINGS

MAY RESULT IN SERIOUS INJURY OR DEATH.

The safety of the winch operator and ground personnel should always be of great concern, and all necessary precautions to insure their safety must be taken. The primary mover and the winch must be operated with care and concern for the equipment and the environment and with a thorough knowledge of the equipment and its performance capabilities must be understood. These general safety guidelines are offered, however local rules and regulations or national standards may also apply.

Recommended references are, but not limited to, ANSI B30, OSHA 1910, AWS D 14.3, and SAE J706.

Additional information can be found at http://www.team-twg.com/TulsaWinch/

Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.

Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury or property damage.

Indicates information or a company policy that relates directly or indirectly to the safety of personnel or protection of property.

Mounting:

Winch mounting must be secure and able to withstand the applied loads.

• The stability of the mounting system must be approved by a qualified person.

• All welding should also be done by a qualified person.

• Winch mount must be flat so as not to induce binding.

• The flatness must not exceed 1/16 inch across the mounting surface of the winch itself.

Insure that all hydraulic hoses, valves and fittings are rated to winch manufacturer’s operating pressures.

Relief valves should be set to winch manufacturer’s specifications.

3

Operator:

Must read and understand the operating and service manual.

Both the SERVICE MANUAL and OPERATING AND MAINTENANCE MANUAL are available online at http://www.team-twg.com/TulsaWinch/

Must never lift or move people with this winch.

This winch is not designed or intended for any use that involves moving people.

Must stay clear of the load at all times.

Ground personnel should remain a safe distance from the load and winch cable at least 1 ½ times the length of cable measured from the winch to the load.

Must stay clear of the cable at all times.

A broken cable can cause serious injury or death.

Must avoid shock loads.

Shock loads can impose a strain on the winch that can be many times the design rating.

Must be aware of the fleet angle of the winch.

All loads should only be pulled with the load line perpendicular to the drum shaft, this is to avoid excessive stresses on the winch and will help prevent the cable from building on one side of the drum flange.

Must wear personnel protective equipment (PPE) if required.

Check the local, state and federal regulations for compliance.

Must insure that the drum clutch is fully engaged before hoisting.

A visual inspection of the drum clutch engagement is required before each winching operation.

Must rig all loads secure before winching.

Pull the load line taut and inspect the condition of load for stability.

Must inspect the drum brake if equipped.

The drum brake is not a load holding device it is design to prevent over spooling of the drum and causing bird nesting of the cable on the drum. Inspect the brake for wear of the lining and the actuation method.

Must inspect the load control brake.

These winches are equipped with two (2) forms of dynamic braking. The springapplied/hydraulically-released multi-disc oil brake is one method. Before a load is handled the load should be pulled tight and stopped to check this brake. The second method is a hydraulic lowering control. The same method should be used to check this brake.

Operation:

• All winch controls must be well marked for function to avoid confusion.

• All winch controls must be located to provide the operator with a clear view of the load.

• The clutch must be inspected daily for proper operation.

• The winch cable should be inspected daily for serviceability.

• A minimum of five wraps of tightly wound cable must remain on the drum.

4

MAINTENANCE

Tulsa Rufnek series planetary winches, like any other piece of machinery, need to be periodically serviced and well maintained to insure proper operation.

Good maintenance consists of four steps.

1. A daily inspection to insure that there are no oil leaks present and that all mounting bolts and other fasteners are tight, and that the wire rope is in good condition.

2. Changing the oil in both the gearbox and the brake section. (Severity of use will

determine the need for oil changes but it should be checked at a minimum of every

500 hours. Factors such as extremely dirty conditions or widely varying temperature

changes may dictate even more frequent servicing).

3. Lubing drum bushings and sliding clutch with grease thru grease fittings located on drum barrel and clutch.

4. Complete teardowns and component inspections. (Again, severity and frequency of

use will determine how often this should be done). If the equipment that this winch is mounted to is subject to standards for this type of inspection, then those standards must be followed. If oil changes reveal significant metallic particles then a teardown and inspection must be made to determine the source of wear.

Rufnek series planetary winches are designed with a common oil reservoir for the gearbox and brake. The winches are shipped from the factory filled with Mobilube SHC

SAE 75W-90 synthetic gear oil which is satisfactory for operation in ambient temperatures from -40°F to +110°F. If winch will be operated in temperatures outside this range, contact Tulsa Winch for recommendations.

The oil is drained by removing the drain plugs (85 & 81) located at bottom of adapter cover (58) and bottom of brake cover (2). Then remove the fill plugs (74 & 81) located at the top of the gear housing (60) and the top of the brake cover (2). Inspect the oil for signs of metallic particles and/or burning and dispose of in a proper manner. Then reinstall the drain plugs.

Fill the brake end with Mobilube SHC SAE 75W-90 (1/2 quart), then fill the gear end with Mobilube SHC SAE 75W-90 oil (9 quarts) and replace both of the fill plugs.

OIL CAPACITIES = 9.5 QUARTS

5

GENERAL DISASSEMBLY

A. MOTOR DISASSEMBLY

1. Drain the oil from the brake assembly by 5. Remove the counterbalance valve (108) removing the plug (81) from the bottom of the brake cover (2).

2. Remove hoses (4, 54, 56, 77, & 80).

3. Remove the counterbalance block (76) and the manifold block (93), from the motor by removing the four cap screws (106).

4. Remove the motor from the winch by removing four capscrews (88). from the counterbalance block (76) and inspect the metering hole to make sure it is not obstructed. Also, inspect the o-rings on valve to insure that they are not flat or cut.

Replace if necessary.

6. Motors and counterbalance valves are not serviceable in the field. Return them to an authorized dealer for service.

7. Inspect o-rings (98) & (107) for damage.

6

B. BRAKE SECTION DISASSEMBLY

1. Evenly remove the four cap screws (3) that hold the brake cover (2) in place. Spring pressure will raise the cover up as the cap screws are loosened. Carefully remove the cover (2) from the brake housing (20).

Inspect the o-ring (6) on cover for damage.

2. Remove the springs (7) from the piston (5) and check the free height. Each spring should measure at least 1.240 inches with no force on them.

3. Remove the piston (5) by installing two pieces of 3/8”-16NC all thread into the two holes in the top of the piston and run in evenly until the piston is clear of the housing. An alternate way of removing the piston is to use shop air to slowly pressurize the brake cavity to remove the piston from the brake housing (20).

4. Inspect the o-rings (8, 10) and back up rings

(9, 11) on the piston, replace if necessary.

Grasp the brake driver/clutch assembly

(assembled items 14, 15, 17, 18, 19, 113) and remove it from the brake housing.

5. Remove the stator plates (12) and friction discs (13) from the brake housing and check them for excessive wear. Replace the parts if necessary. Be sure to check the top stator plate for scoring caused by the removal of the piston and polish if needed. Friction discs should measure no less than .055-in. thickness and stator plates should measure no less than .068-in thickness.

6. To disassemble the brake driver/clutch assembly, remove the retaining ring (17) from either end of the driver. Then, remove the brake driver (14) and bearing (15) from the input driver (19). Next, remove the sprag clutch (18). Finally, remove the retaining ring (17) from the other end of the driver, then remove the second bearing (52) from the input driver.

Notice the direction of lock-up on the clutch for re-assembly.

Inspect the input driver and brake driver for wear, replace if necessary.

7. Remove the bearing housing (16) and inspect the bearing (52).

8. If the bushing or seal in the brake housing needs to be replaced, follow the drum section disassembly and reassembly sections of this manual prior to reassembly of the brake..

7

C. DRUM SECTION DISASSEMBLY

1. To remove the drum, first disconnect the cable from the cable clamp (35) and lay aside. If removing the drum from the motor end with the motor and brake disassembled, first remove the cotter keys (100) and clevis pins (49) connecting the yoke (67) to the bracket (90) & air cylinder (105). Second, remove the eight cap screws (29 & 69), four spacers (97), air cylinder cover (91), air cylinder (105), and bracket (90).

You may need to remove the air lines, so it’s a good idea to mark them for re-assembly.

2. Support the weight of the drum with a hoist.

Remove the four cap screws (61) along with the nuts and washers (63, 62) on the bottom of the brake housing (20). Disconnect the airline running from the air cylinder (68) to the brake housing (20). Remove the brake housing by sliding the housing off the output shaft (38). At this time you will need to remove the two cap screws (70), nuts and washers (71, 72) from the frames (64 or 65).

You can now remove the brake band assembly (66). Note which frame the mounting bolts are on for re-assembly.

Inspect and replace if needed.

3. Remove the outer thrust collar (53) by loosening the three set screws (50).

4. Remove the yoke (67), sliding clutch (27), and coupler (30). Remove the three keys

(94) and the inner thrust collar (24).

Remove the drum using a hoist. Inspect the bushings (31) in both ends of the drum.

You should also inspect the bushing

and seal (21, 25) that are located

in the end of the brake housing.

8

CLUTCH INSPECTION

9

D. GEAR SECTION DISASSEMBLY

1. Drain the oil by removing the plug (85) located on the bottom of the adapter cover

(58).

2. To disassemble the gear section, remove the Intelliguard™ spacer (39) from the outer cover (55) by removing three capscrews

(44). Inspect the gear teeth on the

Intelliguard™ (39) for wear. The

Intelliguard™ system is not serviceable in the field. Return to an authorized dealer for service.

3. Remove the outer cover (55) by removing the ten capscrews (112).

4. Inspect the o-rings (57 & 114) for wear and replace if necessary

5. Remove the input gear set (42) along with the inner and outer thrust washers (43)

Inspect and replace if necessary.

6. Remove the sun gear (45) and secondary gear set (41). Inspect and replace if necessary.

7. Remove the primary housing (58) by removing eight capscrews (32). Inspect the o-ring (59) and replace if necessary.

8. Remove the spacer (28) and sun gear (46).

Inspect for wear and replace if necessary.

9. Remove the snap ring (47) from the output shaft (38).

10. Remove the output gear set (40) and thrust washer (37). Inspect and replace if necessary.

10

E. INPUT PLANET SET DISASSEMBLY

1. Remove the retaining rings (6) from the carrier (1).

2. Remove the planet pins from the carrier (1) by carefully tapping them out.

3. Remove the planet gears (4), thrust washers

(3), and bearings (5) from the carrier.

4. Inspect the parts for wear or damage and replace if necessary.

11

F. SECONDARY PLANET SET DISASSEMBLY

1. Remove the retaining rings (7) from the carrier (1).

2. Remove the planet pins (2) from the carrier

(1) by carefully tapping them out.

3. Remove the planet gears (6), thrust washers

(3), bearings (4), and spacers (5) from the carrier.

4. Inspect the parts for wear or damage and replace if necessary.

12

G. OUTPUT PLANET SET DISASSEMBLY

1. Remove the retaining rings (7) from the carrier.

2. Remove the planet pins (4) from the carrier

(1) by carefully tapping them out.

3. Remove the planet gears (2), thrust washers

(3), bearings (6), and spacers (5) from the carrier.

4. Inspect the parts for wear or damage and replace if necessary.

13

GENERAL ASSEMBLY

H. OUTPUT PLANET SET ASSEMBLY

1. Insert the gears (2), bearings (6), spacers

(5) and thrust washers (3) into the carrier

2. Being careful to line up the thrust washers

(3) and bearings (6) with the planet pins (4),

(1). press the pins into the carrier.

3. Replace the retaining rings (7).

If the pins are not lined up properly, the thrust washer can be shattered during the pressing operation.

14

I. SECONDARY PLANET SET ASSEMBLY

1. Insert the gears (6), bearings (4), spacers

(5), and thrust washers (3) into the carrier

(1).

2. Being careful to line up the thrust washers

(3) and bearings (4) with the planet pins (2), press the pins into the carrier.

3. Replace the retaining rings (7).

If the pins are not lined up properly, the thrust washer can be shattered during the pressing operation.

15

J. INPUT PLANET SET ASSEMBLY

1. Insert the gears (4), bearings (5) and thrust washers (3) into the carrier (1).

2. Being careful to line up the thrust washers

(3) and bearings (5) with the planet pins (2), press the pins into the carrier (1).

3. Replace the retaining rings (6).

If the pins are not lined up properly, the thrust washer can be shattered during the pressing operation.

16

K. GEAR END ASSEMBLY

1. Bolt the gear-housing (60) loosely into both frames (64, 65).

2. When reassembling, apply grease to parts such as thrust washers, o-rings, and seals.

Install the output shaft (38) into the gear housing (60). Slide the thrust washer (37) onto the output shaft (38). Next, install the output gear set (40). Then install the retaining ring (47) onto the output shaft (38).

Push the gear set and shaft back into the housing until it stops against the thrust washer (37).

Make sure to line up all

three planet gears in the

output gear set with the

gear housing as it starts

into the housing.

3. Install the sun gear (46) and spacer (28).

4. Install the primary housing (58) onto the gear housing (60) with eight capscrews (32), making sure not to damage the o-ring (59), and torque them to specification (see page

27 of this manual).

5. Install the secondary gear set (41). .

Make sure to line up all three planet gears in the secondary gear set with the gear housing and sun gear as it starts into

the housing

6. Install the secondary sun gear (45).

7. Install the inner thrust washer (43) onto the input gear set (42). Insert the input gear set

(42) into the ring gear (22) making sure it is against the thrust washer (43). Put the outer thrust washer (43) in place and slide the input shaft (39) through the sun gears and output shaft (38). Let the input shaft protrude out on the gear end so that all of the spline is showing.

8. Put the cover (55) on and secure it with eight capscrews (3), being careful not to damage the o-ring (59). Install the

Intelliguard™ sensor (39) into the cover (55) with three capscrews (44), again making sure not to damage the o-ring (114), add locktite and secure it with three capscrews.

(44)

Make sure the input shaft engages the gear in the Intelliguard™ correctly.

17

L. DRUM SECTION ASSEMBLY

1. After inspecting and replacing the necessary parts, such as the drum bushings (31).

Install the drum (34) onto the output shaft

(38). This part is very heavy and you will need the assistance of a hoist. With the weight of the drum supported, install the brake band assembly (66) along with the bracket (73), capscrews (70), nuts (71), and washers (72).

You may need to lower the drum to align the holes in the brake band with the holes in the frame.

2. Install the brake band air cylinder (68), making sure the rod of the air cylinder (68) is going through the bracket on the brake band

(66). Secure it to the bracket (73) with the clevis pin (99) and cotter key (100). Tighten the adjusting nut on the air cylinder shaft until there is not space between the drum

(34) and the brake band (66). Then, tighten the jam nut to secure the adjusting nut.

3. Install the inner thrust collar (24) making sure the half-moon slots are lined up with the key slots in the output shaft (38). Tap the three keys (94) into their slots in the output shaft.

4. Align the coupler (30) with the keys (94) and slide it onto the output shaft (38). Install the sliding clutch (27) and yoke (67) onto the coupler (30).

5. Install the outer thrust collar (53), aligning the half moon slots with the keys (94).

Tightly hold the thrust collar (53) against the keys and lock down the three set screws

(50).

6. Slide the brake housing (20) onto the output shaft (38).

(Continued on page 19)

The brake band may need to be readjusted once it’s in the field.

18

DRUM SECTION ASSEMBLY

CONTINUED

7. Bolt the brake housing (20) loosely into both frames (64, 65). Lower the drum so the weight of the drum is supported by both the brake and gear housings. The air line from the brake band air cylinder can be attached at this time.

8. Disengage the sliding clutch (27) so you can turn the drum freely and tighten all bolts through the frames to the proper torque specification (see page 27 of this manual).

9. Turn the drum to make sure it is not binding.

10. If necessary, install the air cylinder (105) and the air cylinder cover (91) to the brake housing with four capscrews (69) and spacers (97).

11. Install the bracket (90) to the brake housing using four capscrews (29).

12. Attach the yoke (67) by installing clevis pins

(49) into the bracket (90) and clevis (48).

Install cotter keys (100) to clevis pins (49) to secure their positions. Connect shop air to the cylinder and apply air in both directions.

With the clutch fully engaged (air applied), there should be slight movement on the clutch plate in both directions. Adjust clevis

(48) and air cylinder jam nut accordingly.

19

M. BRAKE SECTION ASSEMBLY

1. Re-assemble the driver/clutch assembly making sure the clutch is installed properly and checking to make sure the cam clutch is free turning in the pay in direction.

2. Install the bearing housing assembly that contains parts 16 and 52 into the brake housing.

3. Install the driver/clutch assembly onto the

Intelliguard shaft (39).

4. Install the stator plates (12) and friction discs (13) starting with a stator plate and alternating between friction discs and stator plates until seven stator plates and six friction discs are used.

Dip friction discs in lightweight

Non-EP oil before installation.

5. Install the piston (5) into the brake housing

(20) and gently tap it down until it is seated making sure not to damage the o-rings (8,

10) or back-up rings (9, 11).

6. Install the springs (7) into the spring pockets in the piston. If working in a horizontal position, coat the bottom of each spring with chassis lube to keep it in position.

7. Install the cover (2) onto the brake housing

(20) using four capscrews (3) making sure the cover is correctly oriented. Then, draw it down evenly, alternating between opposite capscrews, being careful not to damage the o-ring (6).

8. Check the brake release with a portable hydraulic pump. Full release should be obtained at 400psi, plus or minus 20psi.

Also, check the brake for proper operation by applying 105psi to the brake port and adapting a torque wrench to the Intelliguard shaft. The torque in the payout should be

134 to 154 ft-lbs.

20

N. MOTOR ASSEMBLY

1. Install the o-ring (98) then the motor (1) and secure it with four capscrews (88). Tighten the capscrews to the proper torque specification (see page 27 of this manual).

Make sure you install the motor with the belly of it down and the case drain

port up.

2. If removed, install cartridge valve (101).

3. Install the o-ring (107) into the manifold block (93) and counterbalance block (76).

4. Install the counter-balance valve (108) into the counterbalance block (76).

5. Install the manifold block (93) and counterbalance block (76) using four capscrews

(106).

6. Install hoses (4, 54, 56, 77, and 80).

7. Remove the oil level plugs (81 & 86) from the brake cover (2) and gearbox cover (55).

Fill the brake and gearbox through the oil fill hole located on top of the gearbox with the proper oil until the oil reaches the oil level holes. Replace the oil level plugs. (See

page 5 of this manual.

21

Oil leaks from the vent located on the top of the gearbox

Winch runs too slow

Cable drum won’t free spool

TROUBLESHOOTING

FAILURE

Winch won’t hold load.

Winch will not raise the load it should.

PROBABLE CAUSE

a) Excessive back pressure in the system. Check the system for restrictions and reduce the backpressure. b) Brake discs are worn out. Replace brake discs. c) Winch clutch is slipping. Inspect the clutch and driver for wear and replace worn parts. a) Relief valve setting may be too low to allow proper lifting. Increase relief valve pressure setting. (Note: Do not exceed recommended

system pressures.) b) Load being lifted may be more than the winch’s rating. Reduce the load or re-rig to increase mechanical advantage. a) The motor shaft seal may have failed. Replace this seal and reduce backpressure if that caused the shaft seal to fail. b) Brake piston seals may have failed. Service the brake section and replace worn parts. a) Low flow rate. Check the flow rate and increase if necessary. b) Hydraulic motor worn out. Replace the motor. a) Winch not mounted squarely. Check mounting and confirm that the winch is mounted on a level surface. b) Clutch not disengaged. Disengage the clutch.

22

RUFNEK 80 BILL OF MATERIAL

SEQ QTY P/N DESCRIPTION

CAPSCREW

O-RING

O-RING

O-RING

22 - -

23 - -

BEARING

CLUTCH

BUSHING

OMIT

OMIT

28 1 44498

36 - -

SUN GEAR SPACER

CAPSCREW

COUPLER

BUSHING

CAPSCREW

WASHER

OMIT

40

41

42

1

1

1

4397

4399

4398

23

OUTPUT GEAR SET

SECONDARY GEAR SET

INPUT GEAR SET

RUFNEK 80 BILL OF MATERIAL

CONTINUED

SEQ QTY P/N DESCRIPTION

45

46

1

1

44430

44431

CAPSCREW

SECONDARY SUN GEAR

OUTPUT SUN GEAR

CLEVIS

51 2 21128 ZERK GREASE FITTING

64 1 44434

68 1 42929

73

76

78

1 42955

1

2

42029

42438

83 - -

84 1 43834

COVER

O-RING

O-RING

CAPSCREW

NUT

LOCKWASHER

RIGHT HAND FRAME

BRAKE BAND AIR CYLINDER

CAPSCREW

CAPSCREW

NUT

LOCKWASHER

AIR SHIFT MOUNTING BRK.

BREATHER

1200W COUNTERBALANCE BLOCK

STRAIGHT THREAD BRANCH TEE

FITTING

OMIT

AIR SHIFT TUBING & FITTING KIT

24

RUFNEK 80 BILL OF MATERIAL

CONTINUED

SEQ QTY P/N DESCRIPTION

89 1 32411

CAPSCREW

HEX PLUG

91 1 43835 AIR CYLINDER COVER

95 - -

96 - -

101 1 43367

102 - -

103 - -

104 - -

109 1 44736

110 - -

111 - -

112 - -

115 - -

OMIT

OMIT

SPACER

O-RING

12 VOLT CARTRIDGE VALVE

OMIT

OMIT

OMIT

CAPSCREW

O-RING

INTELLIGUARD™ LOGO PLATE

OMIT

OMIT

OMIT

O-RING

OMIT

25

VISCOSITY CHART

26

TORQUE SPECIFICATIONS CHART

Nominal Size

SAE

Grade 5

Torque

*(Ft-Lbs)

1/4 20 8

1/4 28 10

5/16 18 17

5/16 24 19

3/8 16 31

3/8 24 35

SAE

Grade 5

Torque

*(Ft-Lbs)

6

7

13

14

23

26

SAE

Grade 5

Torque

*(Ft-Lbs)

5

6

10

11

19

21

SAE

Grade 8

Torque

*(Ft-Lbs)

12

14

25

27

44

49

SAE

Grade 8

Torque

*(Ft-Lbs)

9

10

18

20

33

37

SAE

Grade 8

Torque

*(Ft-Lbs)

7

8

15

16

26

30

7/16 14 49

7/16 20 55

1/2 13 76

1/2 20 85

37

41

57

64

30

33

70

78

53

58

45 106 80

51 120 90

42

47

64

72

9/16 12 109

9/16 18 122

82

91

65

73

153 115 92

172 129 103

5/8 11 150 113 90 212 159 127

5/8 18 170 128 102 240 180 144

3/4 10 266 200 160 376 282 226

3/4 16 297 223 178 420 315 252

7/8 9 430 322 258 606 454 364

7/8 14 474 355 284 668 501 401

1 8 644 483 386 909 682 545

1

14 721 541 433 1019 764 611

1-1/8 7 794 596 475 1288 966 772

1-1/8 12 890 668 534 1444 1083 866

1-1/4 7 1120 840 672 1817 1363 1090

1-1/4 12 1241 930 745 2012 1509 1207

T = BOLT TORQUE (LB. FT.) T = (KWD) / 12

K = TORQUE COEFFICIENT (K = 0.20 DRY K = 0.15 PLATED K = 0.12 LUBRICATED)

W = PRELOAD TENSION

D = NOMINAL BOLT SIZE (IN.) * ALL TORQUE VALUE TOLERANCES ARE ± 5%

27

RUFNEK 80 ISOMETRIC DRAWING

DO NOT USE MAGNETS

ON OR AROUND WINCH.

28

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