Presentation on theme: "J.P. Langston Brake Retrofit"— Presentation transcript:
1 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
2 Langston Automotive Style Brakes and Langston Unwind Stands
3 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.
4 After receiving your V Brake(s), verify contents. V300 Series brake spider assemblyAir InputV308V Brake PistonAir Fittings & (Ø 1/4”) PipingV Pistons & V Pads
5 To begin installation, attach fan cover mounting clips (3) to the back side of the spider plate.
6 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 spiderEdge of clip
7 Additional brake package components V300 Series Fan CoverHub & SpacerBrake with single air inputMounting Studs – V300 Series1/2-13 UNC Hex Nuts, (3) per stud1/2-13 UNC Studs, (4) per brake
8 J.P. Langston Brake Input air line J P Langston friction module J P Langston brake rotor
9 Uninstall your Langston brake by loosening the set screws and removing the friction module mounting pins to remove the friction module assembly.Mounting pinsSet screwsJ P Langston friction module
11 Remove the 3 M12 SHCS from rotor hub using 10mm allen wrench.
12 Save all shims for use with the new brake. Check inside rotor hub and on the shaft end for additional shims
13 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 shimsDamaged or broken shims should be replaced with new ones of equal thickness
14 After rotor hub is removed use an allen wrench to remove mounting plate bolts.
15 Carefully pull the mounting plate from the spindle arm without allowing the shaft/core chuck to drop back from the side.
16 Clean grease and dirt from the mounting plate. Grease seal
17 Mark the mounting plate to identify the unwind position.
18 Prepare to remove and replace shaft seal, and then install new seals from mounting plate backside. Prepared mounting plateMounting Plate ShoulderSeal
19 Before installing seal into mounting plate, check that the ‘seal lip spring’ has not popped out.
20 Install new seal using Federal-Mogul P/N 417269 4.875 x 6.250 x 0.500.
21 The next step is to mark the Mounting Plate Hole locations using the Montalvo Supplied Drill Jig
22 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 IndexSeal IndexNew SealFlat IndexDrill BushingsCounterboredSideFlat Index
23 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.Verified locationsØ1/4” Center Punch (4) Locations
24 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).
25 Drill 27/64 Diameter (0.4219) thru (4) places Note that thru holes are not close to existing mounting plate holes.
26 Clamp mounting plate to work surface and tap 1/2-13 UNC thru (4) places 1/2-13 UNC tap, (4) places
27 Replace mounting plate/seal assembly and tighten bolts
29 Insert shims into new brake hub and align with clearance holes Montalvo brake hubShims saved from old brake
30 Place hub at shaft end and hold M12 SHCS bolts in place at hub counter bore
31 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
32 Check shaft for rotation and axial movement New seal may make rotation stiff until broken in.Predrilled mounting plateNew grease sealHubSpacer
33 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.Visually insure stud end is behind hub shoulderHub shoulder3/4” to 1” thread into plate
34 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
35 Make sure the friction pads are facing out. Thread another 4 1/2-13 UNC hex nuts onto the stud ends to hold the spider in placeMake sure the friction pads are facing out.Friction padPiston assembly1/2-13 hex nut
36 Attach disc brake to hub over the index shoulder using 6 M8x35 SHCS Montalvo V300 Brake Disc
37 Tighten the 1/2-13 UNC hex nuts to the mounting plate. Hex nuts on either side of spider assemblyBe sure that stud does not contact brake disc
38 Adjust hex nuts until there is approximately 1/16” gap between friction pads and brake disc
39 Verify 1/16” gap all of the way around the disc Check pad-disc gap with 1/16” shim and tighten out hex nut where necessaryVerify 1/16” gap all of the way around the discOuter hex nut
40 Run a power cable for the fan cover and replace the air input line with a Ø ¼” hose
41 Push Ø ¼” input air line through cover into push lock fitting Brake cover
42 Assembled V-308 Brake with fan cover Power to fanAir input to brakeØ1/4” diameter air lineFan power from control arm
43 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
44 Langston Model 380 Corrugator With Montalvo V308 Brakes Done.Langston Model 380 Corrugator With Montalvo V308 Brakes
45 Installation Overview After removing old brake assembly:Remember To Keep Old Shims At Each Unwind StandIt Is Essential That All Shims Are Kept At Their Original Position For Use With The New BrakeRemove Mounting PlateInstall New Seal In Mounting PlateUse Drill Jig To Align Mounting HolesUse Punch To Mark (4) LocationsDrill (4) Holes For Mounting StudsTap Holes For 1/2-13 UNCReplace Mounting PlateInsert SpacerMount New Brake Hub With Old ShimsTighten Hub While Supporting ShaftThread (4) Studs With Nuts Into Mounting PlateSlide V308 Spider Assembly Over Mounting StudsAttach Brake Disc To Hub Using (6) M8x35 SHCSVerify That Stud Does Not Contact Brake RotorAdjust For 1/16” Gap Around The Brake Assembly