Motor Brake   SB 215.1

Service Bulletin: SB 215.1

Subject: Motor Brake

Recommendations: 

Paper Machinery Corporation is pleased to offer a new Nexen Brake Assembly for the PMC-1002 & PMC-1001* machines. The Nexen Brake Assembly is a direct replacement for the (current) Wichita Brake Assembly, using 20 & 25HP motors.

The Nexen Brake offers a longer service life and simple installation. The installation process will require the use of a Special Nut Wrench (#220-813), available for purchase through PMC’s Parts Orders Department.

Refer to Service Instruction sheet #097.1 below for complete instructions on the PMC-1002 machine.

Refer to Service Instruction sheet #102.1 below for complete instruction on the PMC-1001 machine (equipped with a locknut).

* PMC-1001 motors are equipped with either a Straight Shaft (which requires set screws) or a LockNut that secures the motor brake. The Special Nut Wrench only applies to PMC-1001 motors equipped with a LockNut (and all PMC-1002 motors).

For PMC-1001 motors equipped with a Straight Shaft, refer to Service Instruction sheet #100.1 below for complete installation instructions.

Instruction sheet #097.1 for PMC-1002

INSTALLING THE NEXEN BRAKE ASSEMBLY

Refer to Drawing #420-300 and proceed as follows.

1. Ensure Key is properly fitted to Motor Shaft & new Brake Assembly
2. Apply a coat of Anti-Sieze to Motor Shaft & Bore of the new Brake Assembly
3. Mount Brake Assembly to Shaft
4. Lock the Brake Assembly into position by using the Brake Nut Wrench (sold by PMC) to install the Bearing Locking Nut [#16 ]. Torque the Nut to 55 ft / lb.
5. 1. Install Bolt Sleeve [#2 ], washers [#17 ] & [#13 ] and Spring [#18 ] to Bolt [#19 ].
   2. Apply Locking Compound to the Bolt and Torque to 75 ft / lb.
6. Install the Air Brake Motor Guard [#1 ] using Socket Head Cap Screws [#11 ] and Lock Washers [#12 ]
7. 1. Install Air Supply Fitting [#14 ]
   2. Re-connect the Poly Flow Tubing

Instruction sheet #102.1 for PMC-1001

INSTALLING THE NEXEN BRAKE ASSEMBLY

Refer to Drawing #420-543 and proceed as follows.

1. Ensure key is properly fitted to motor shaft and new brake assembly.
2. Apply a coat of anti-sieze to motor shaft & bore of the new brake assembly.
3. Mount brake assembly to shaft.
4. Lock brake assembly in position by using the brake nut wrench (sold by PMC) to install the bearing locknut [#124] and torque the nut to 55 ft/lbs.
5. Apply thread locking compound to the (2) screws [#102]. Install screens and torque them to 75 ft/lbs.
6. Install the brake motor guard [#1] using washers [#126] and screws [#125].
7. Install air supply fitting [#109] and re-connect the poly flow tubing.

Instruction sheet #100.1 for PMC-1001

INSTALLING THE NEXEN BRAKE ASSEMBLY

Refer to Drawing #420-525 and proceed as follows.

1. Make sure the Key is properly fitted to the Motor Shaft and the Nexen Brake Assembly.
2. Apply a coat of Anti-Sieze to the Motor Shaft and Bore of the new Brake Assembly.
3. Mount the Brake Assembly to the Motor Shaft and push the Brake up to the Motor.
   NOTE: Support the Brake Assembly with a floor jack, if needed.
4. Using a 1/4″ “T” Handle Allen Wrench, tighten the (3) Screws [#12].
   NOTE: Apply Thread Locking Compound to Screws.
5. Install the (2) Anti-Rotation Screws [#13].
   NOTE: Apply Locking Compound to the Threads.
6. Install the Air Brake Guard [#1] using Socket Head Cap Screws [#10] & Lock Washer [#11].
7. Install Air Supply Fitting and re-connect the Poly Flow Tubing

CONTACT: Parts orders and customer communication can be made using telephone, FAX, or e-mail. Contact can still be made using the main telephone switchboard at 414-354-8050 or FAX number 414-354-8614. Sending a FAX directly to the Service Department, at 414-354-1710, will convey a faster response. If using e-mail and no response is made within 3 working days, please contact via phone or FAX.

Parts orders can be directed to Holly Warner or Vicky Alcaraz using telephone, FAX, or e-mail. Please make sure to carbon copy (CC) both Holly Warner and Vicky Alcaraz in all e-mails containing parts orders. Service issues can be directed to Steve Evans or Mike Ferguson and electrical issues to Larry Spencer.