Presentation on theme: "J.P. Langston Brake Retrofit A detailed walkthrough of how Montalvo upgrades the capabilities of your Langston machine with a retrofit to Montalvo V Brakes."— Presentation transcript:
J.P. Langston Brake Retrofit A detailed walkthrough of how Montalvo upgrades the capabilities of your Langston machine with a retrofit to Montalvo V Brakes
Langston Automotive Style Brakes and Langston Unwind Stands
First, verify your Langston machine number. When ordering a Langston retrofit package your machine number is used to match brake bolt patterns and shaft types.
After receiving your V Brake(s), verify contents. V Pistons & V Pads Air Fittings & (Ø 1/4) Piping Air Input V Brake Piston V300 Series brake spider assembly V308
To begin installation, attach fan cover mounting clips (3) to the back side of the spider plate. Mounting clips
Attach cover clips with supplied SHCS & Washers. Verify that the edge of the clip does not protrude past the edge of the spider plate before tightening. You can use your finger to verify that the edge of the clip is flush with the spider. Edge of spider Edge of clip
Additional brake package components Brake with single air input Mounting Studs – V300 Series Hub & Spacer V300 Series Fan Cover 1/2-13 UNC Hex Nuts, (3) per stud 1/2-13 UNC Studs, (4) per brake
Input air line J P Langston friction module J P Langston brake rotor J.P. Langston Brake
Uninstall your Langston brake by loosening the set screws and removing the friction module mounting pins to remove the friction module assembly. Set screws Mounting pins J P Langston friction module
Pull out the 4 friction module mounting pins. Friction module mounting pin
Remove the 3 M12 SHCS from rotor hub using 10mm allen wrench.
Save all shims for use with the new brake. Check inside rotor hub and on the shaft end for additional shims
It is essential that all Shims are kept at their original position for use with your new V Brake. Remove all grease and dirt from the shims Damaged or broken shims should be replaced with new ones of equal thickness
After rotor hub is removed use an allen wrench to remove mounting plate bolts.
Carefully pull the mounting plate from the spindle arm without allowing the shaft/core chuck to drop back from the side.
Clean grease and dirt from the mounting plate. Grease seal
Mark the mounting plate to identify the unwind position. Unwind Position
Prepare to remove and replace shaft seal, and then install new seals from mounting plate backside. Mounting Plate ShoulderSeal Prepared mounting plate
Before installing seal into mounting plate, check that the seal lip spring has not popped out. Seal Lip Spring Seal
Install new seal using Federal-Mogul P/N x x
The next step is to mark the Mounting Plate Hole locations using the Montalvo Supplied Drill Jig
Place the drill jig over the mounting plate and align the jig so that the flat on the jig indexes to the flat on the mounting plate. Flat Index Drill Bushings Flat Index Seal Index Counterbored Side New Seal Flat Index
Check to ensure each location to be punched is clear of existing mounting plate holes. Remove jig and verify that punched locations clear mounting plate holes. Ø1/4 Center Punch (4) Locations Verified locations
Next, set up milling machine Set machine for drilling and tapping 1/2-13 UNC holes, and drill holes for mounting studs (4 per plate).
Drill 27/64 Diameter (0.4219) thru (4) places Note that thru holes are not close to existing mounting plate holes.
Clamp mounting plate to work surface and tap 1/2-13 UNC thru (4) places 1/2-13 UNC tap, (4) places
Replace mounting plate/seal assembly and tighten bolts
Insert shims into new brake hub and align with clearance holes Montalvo brake hub Shims saved from old brake
Place hub at shaft end and hold M12 SHCS bolts in place at hub counter bore
Insert and tighten 3 M12x45 SHCS bolts thru hub and spacer into shaft Note: Apply Pressure To The Back Side Of The Shaft While Tightening Bolts
Check shaft for rotation and axial movement New seal may make rotation stiff until broken in. New grease seal Predrilled mounting plate Spacer Hub
Install 4 1/2-13 UNC Studs with hex nut into mounting plate Wait to tighten the hex nuts until after the brake has been put on. 3/4 to 1 thread into plate Visually insure stud end is behind hub shoulder Hub shoulder
Thread a second 1/2-13 UNC nut on each stud before attaching the spider, and then slide Spider Assembly over the studs. Second set Of 1/2-13 UNC hex nuts installed behind spider assembly
Thread another 4 1/2-13 UNC hex nuts onto the stud ends to hold the spider in place Make sure the friction pads are facing out. 1/2-13 hex nut Friction padPiston assembly
Attach disc brake to hub over the index shoulder using 6 M8x35 SHCS Montalvo V300 Brake Disc
Tighten the 1/2-13 UNC hex nuts to the mounting plate. Hex nuts on either side of spider assembly Be sure that stud does not contact brake disc
Adjust hex nuts until there is approximately 1/16 gap between friction pads and brake disc 1/16 gap Adjust hex nut
Check pad-disc gap with 1/16 shim and tighten out hex nut where necessary Verify 1/16 gap all of the way around the disc Outer hex nut
Run a power cable for the fan cover and replace the air input line with a Ø ¼ hose
Push Ø ¼ input air line through cover into push lock fitting Push lock fitting Brake cover
Assembled V-308 Brake with fan cover Power to fan Air input to brake Fan power from control arm Ø1/4 diameter air line
Run the fan power from each control arm Note the air and power input orientation relative to the pick-up arm. Air and Power inputs
Done. Langston Model 380 Corrugator With Montalvo V308 Brakes
Installation Overview After removing old brake assembly: Remember To Keep Old Shims At Each Unwind Stand It Is Essential That All Shims Are Kept At Their Original Position For Use With The New Brake Remove Mounting Plate Install New Seal In Mounting Plate Use Drill Jig To Align Mounting Holes Use Punch To Mark (4) Locations Drill (4) Holes For Mounting Studs Tap Holes For 1/2-13 UNC Replace Mounting Plate Insert Spacer Mount New Brake Hub With Old Shims Tighten Hub While Supporting Shaft Thread (4) Studs With Nuts Into Mounting Plate Slide V308 Spider Assembly Over Mounting Studs Attach Brake Disc To Hub Using (6) M8x35 SHCS Verify That Stud Does Not Contact Brake Rotor Adjust For 1/16 Gap Around The Brake Assembly