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Boston gear ORC-F Series Trig-O-Matic, Installation And Operation Manual, Page: 3 / 16

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Boston gear ORC-F Series Trig-O-Matic Installation And Operation Manual Download Page 3

Boston Gear • 800-825-6544

P-3002-BG     

  3

 

c.  After the drive pawl enters the rotor notch, 

turn the wrench counterclock wise until 

the reset screw has stopped at its original 

position, which is approximately flush with 

the O.D. of the clutch housing. 

This is 

essential to restore the torque to its 

original setting.

 

d.  Reducing the clutch torque setting may 

make the reset procedure easier if the 

clutch is near the maximum torque.

C. Torque Adjustment

The clutch is supplied with a torque selector dial. 

This dial makes torque adjustments on the clutch 

possible. There are mill marks on the housing near 

the hole stamped 9 on the outside diameter of 

the housing. The mill marks have stamped values 

indicating a set, or minimum and maximum torque. 

(See Figure 4A) If a drastic change in torque is 

desired, it may be necessary to change springs. 

See Section VI for spring replacement.

1.  Increasing the Torque

 

a.   Make sure the clutch is engaged.

 

b.   Turn the torque adjustment screw 

 

clockwise until it is flush with the milled  

 

depth of the desired torque setting or  

 

until nuisance trips are eliminated.

 

c.  Check its operation.

B.  Resetting Instructions

1.  Automatic Reset (Models FJ, FG, FR) - To  

re-engage the clutch after an overload has  

been cleared, jog the drive until the clutch  

re-engages. At this point the rotor keyway 

will line up with the index line on housing and 

the limit switch plate will retract to its original 

position.

2.  Manual Reset (Models GJ, GG, GR)

Note:

   Be sure not to use a powered wrench as it 

may cause damage to the reset pawl and/or 

reset spring!

 

a.  After the overload condition has been 

corrected, rotate the drive until the rotor 

keyway is in alignment with the hole 

stamped 22 located on the outside 

diameter of the housing (See Figure 4).

 

b.  Reset the clutch by inserting a hex wrench 

into the reset screw (Stamped 20) shown in 

Figure 4, and turn the screw clockwise until 

the reset pawl releases the drive pawl. Refer 

to Table 5 for the proper wrench size.

Actuating Plate

Liftout Button

Cam Plate

Return Pi

n

Return Spring Pi

n

Figure 3

Reset Spring

Reset Spring Screw

(Stamped 9)

Reset Paw

l

Access Screw

(Stamped 22)

Drive Spring Screw

(Stamped 8)

Drive Spring

Rotor

Drive Paw

l

Reset Screw

(Stamped 20)

Figure 4

Summary of Contents for ORC-F Series Trig-O-Matic

Page 1: ...Boston Gear ORC F Series Trig O Matic Installation and Operation P 3002 BG ORC F Series ...

Page 2: ...e rotor to exert a force on the liftout buttons forcing them to move the actuating plate axially away from the clutch housing See Figure 3 When the clutch is re engaged the actuating mechanism will automatically return to its original position by the force of the return springs on the return pins Contents I Introduction A Operating Principle 2 B Resetting Instructions 3 C Torque Adjustment 3 Il Mo...

Page 3: ...e milled depth of the desired torque setting or until nuisance trips are eliminated c Check its operation B Resetting Instructions 1 Automatic Reset Models FJ FG FR To re engage the clutch after an overload has been cleared jog the drive until the clutch re engages At this point the rotor keyway will line up with the index line on housing and the limit switch plate will retract to its original pos...

Page 4: ...quare Wrench Socket Milled Depth For Max Torque Reset Spring Lock Screw Reset Spring Disc Milled Depth For Set or Min Torque Size Screw Size Qty Dowel Size Qty Seating Torque Ream Size 1 1 4 20 3 1 4 1 150 in lb 2495 2 5 16 18 3 5 16 1 305 in lb 3120 3 3 8 16 4 3 8 1 545 in lb 3745 4 1 2 13 4 1 2 1 1 300 in lb 4995 5 5 8 11 6 5 8 1 2 530 in lb 6245 Size Thread Depth Bolt Circle Pilot Dia 000 002 1...

Page 5: ...ounting a coupling sprocket etc to the clutch Clutch Size Chain Size and Pitch 25 1 4 Pitch 35 3 8 Pitch 40 1 2 Pitch 41 1 2 Pitch 50 5 8 Pitch 60 3 4 Pitch 80 1 Pitch 100 1 1 4 Pitch 120 1 1 2 Pitch 140 1 3 4 Pitch 160 2 Pitch 1 40 28 22 22 18 2 54 36 28 28 22 19 3 X 45 34 36 28 25 19 4 X X 42 45 36 30 23 19 5 X X X X 42 36 30 22 19 17 Table 3 Minimum Number Of Teeth Of Standard Plate Sprockets A...

Page 6: ... the clutch is mounted on the high speed side of the reducer Generally mounting in this manner requires the clutch to be too hypersensitive to perform satisfactory 2 Indirect Drives a Either location of the clutch shown in Figure 9 is preferred in indirect drive applications b The mounting location in Figure 10 is not preferred for the same reasons as those for Figure 8 Always consult the factory ...

Page 7: ...shaft by tightening the two setscrews located in the hub of the flange Refer to Table 8 for recommended coupling setscrew seating torques 5 Parallel Alignment a Place a straightedge across the clutch housing and coupling flange as shown in Figure 11 b Measure the offset around the periphery of these two components without rotating the shafts c If the difference in offset from any two points 180 de...

Page 8: ...ts into the housing pilot and that the mounting holes are aligned In the case of a N index coupling make sure that the desired mounting slots are aligned with the clutch housing mounting holes 5 Secure the coupling to the drive shaft by tightening the two setscrews located in the hub of the flange Refer to Table 8 for recommended coupling setscrew seating torques 6 Parallel Alignment a Place a str...

Page 9: ...nnual Inspection The ORC Series Model F Overload Release Clutch is constructed of heavy duty materials Under reasonably clean conditions the unit will operate with a minimum of maintenance A scheduled annual inspection of bearings pawls rotor springs actuating plate cam plate and other internal components is suggested However the actual frequency should be in accordance with good operating practic...

Page 10: ...ar sizes 2 through 5 only 20 Replace any worn or broken parts B Basic Unit Assembly 1 If clutch is manual reset install the reset screw from the inside of the housing turning counterclockwise until the reset screw pin stops the screw from turning 2 Press the rotor 12 into the housing bearing If the rotor is a Model FJ or Model FG press the shorter end of the rotor into the housing bearing If the r...

Page 11: ...propriate hole in the housing Check the fit of the reset pawl into the notch of the drive pawl with the clutch disengaged The reset pawl should fit approximately one third of the way into the notch Grinding the nose of the reset pawl may be necessary to obtain the proper fit 4 The drive pawl 10 and the drive spring 17 will have to be installed simultaneously If a drastic change in torque is desire...

Page 12: ...e the torque wrench locking collar for Model FJ and FG and arbor For Model FR remove the access screw from the hole stamped 22 on the housing loosen the rotor setscrew and replace access screw Then remove the clutch from chuck or vise 2 Apply a thin coat of grease to the O ring 39 and place it into groove on the outer edge of the cover Be sure not to twist the O ring 3 Insert the Woodruff key 37 i...

Page 13: ... Shaft Length FG Model F Limited Available Shaft Length FR Model F Overall Limited Space Type B Basic C Flexible Coupling N Indexing Coupling R Rigid Coupling T Sprocket Coupling Bore Type C N or R Only P Bored to Size in 1 6 M Metric Bored to Size mm Leave Blank for Non Coupled Units Torque Range L Light M Medium H Heavy Unit Bore P Bored to Size in 1 16 M Metric Bored to Size mm Check Load Incre...

Page 14: ...14 Boston Gear 800 825 6544 P 3002 BG 25 1 5 6 24 4 15 16 18 19 11 12 31 27 34 29 35 26 32 30 13 33 38 36 39 23 8 20 22 17 21 9 37 10 2 25 24 7 5 3 3 14 28 ORC Series Model F ...

Page 15: ... Drive Spring Medium Torque Range M 730385 001 1 730385 007 1 730385 015 1 730385 020 1 730385 026 1 18 Reset Spring Medium Torque Range M 730385 006 1 730385 012 1 730385 019 1 730385 025 1 730385 031 1 17 Drive Spring High Torque Range H 730385 001 1 730385 009 1 730385 015 1 730385 021 1 730385 027 1 18 Reset Spring High Torque Range H 730385 006 1 730385 013 1 730385 019 1 730385 025 1 730385 ...

Page 16: ...t or repair and it shall not be held liable in any form of action for direct or consequential damages to property or person THE FOREGOING LIMITED WARRANTY IS EXPRESSLY MADE IN LIEU OF ALL OTHER WARRANTIES WHATSOEVER EXPRESS IMPLIED AND STATUTORY AND INCLUDING WITHOUT LIMITATION THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS No employee agent distributor or other person is authorized to give...

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