Logicbus Nema 34 Stepper Motor Instruction Manual
- October 27, 2023
- Logicbus
Table of Contents
Mounting Instructions PL Gearhead
Nema 34 Stepper Motor
NOTE: If the gearhead is to operate with its output shaft pointing upward, call AMP, Inc.’s sales or engineering department for extra grease packets and instructions.
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CONTENTS
- PL planetary gearhead.
- Pinion gear with balanced clamp collar.
- Four (4) allen head cap screws for mounting the motor to the gearhead.
- Woodruff key.
- Allen wrench(es).
- This instruction sheet.
ASSEMBLY SEQUENCE
- Slide the clamp collar fully onto the pinion gear (fig 1).
- Gently tighten the two (2) screws on the clamp to remove any loose clearance – keep the distance of the gap at each end approximately equal.
- Slide the pinion gear with the clamp onto the motor shaft (fig 2).
- Insert the proper thickness feeler gauge (see: Table A, Pinion Gear Positioning, on back) between the pinion gear and motor pilot (fig 3). Note: feeler gauge not supplied.
- Tighten the two (2) clamp screws evenly and firmly; then remove feeler gauge.
- MPORTANT: Tighten the two (2) screws on the clamp to the proper torque (see: Table A, Clamp Screw Torques).
- Position the motor/pinion assembly vertically on a bench with the pinion gear upwards. NOTE: if the gearhead requires sealing to the motor face, apply a thin film of Loctite 515 “Gasket Eliminator” or equivalent to the entire mounting surface of the motor to achieve a positive seal.
- Lift and vertically orient the gearhead over the motor. Carefully and slowly lower the gearhead onto the pinion gear. Proper alignment will be necessary.
- When the gearhead makes contact with the pinion gear, rotate the gearhead to allow the teeth to align themselves. The unit will find its alignment – then lower the gearhead fully into position.
- Lay the assembly horizontal on a flat surface and install the motor mounting screws – tighten with allen wrench (fig 4).
(Fig 4)
Completed Assembly
PL Planetary Gearhead with Motor
TABLE A
Pinion Gear Positioning and Clamp Screw Torques for Standard Nema Gearheads
| UNIT SIZE | WRENCH SIZE | SCREW TORQUE (NOM) | DISTANCE |
|---|---|---|---|
| SIZE 17 | #4-40 | 10 LB. IN. | 0.047 |
| SIZE 23 | #8-32 | 28 LB. IN. | 0.047 |
| SIZE 34 | #10-32 | 45 LB. IN. | 0.094 |
| SIZE 42 | 01-04-28 | 110 LB. IN. | 0.094 |
| SIZE 56 | 01-04-28 | 110 LB. IN. | 0.094 |
| SIZE 75 | 01-04-28 | 110 LB. IN. | 0.094 |
Additional Clamp Screw Torques
SCREW SIZE
6-32
3/8-24| SCREW TORQUE (NOM.)
15 LB. IN.
436 LB. I
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Customers will need a torque wrench with the proper Allen tip
Mounting Instructions – PL Gearhead
960-0127
Rev A
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