Braun / Valid Manufacturing Executive Step (Automatic Electric Entry Step)
Service knowledge for the coach entry Executive Step, originally a Braun product and now built by Valid Manufacturing: how the chain-driven dual step works, the five-wire input harness and what each wire must see, the manual cable release for a stuck step, parts-breakdown highlights spanning both the old Braun and current Valid assemblies, and a summary of Valid's 12-month vehicle-products warranty.
Overview
The Executive Step is the automatic dual entry step fitted at the entrance door of Farber's specialty coaches. It began life as a Braun Corporation product (the 'Step — Motor Home' series) and is now manufactured and supported by Valid Manufacturing Ltd. of Salmon Arm, BC; the mechanicals are essentially continuous, so old-Braun and current-Valid part numbers both show up in the field and both are listed below. The assembly weighs about 153 lb, is roughly 34 3/4" wide closed, and extends two treads (top and bottom step) on a slide carriage driven by a 12 V motor through an ANSI #35 roller chain. A controller board (Valid Y006962, 'Executive Step circuit board') switches the motor through plug-in relays; the old Braun design used a 30/40 A SPDT plug-in relay (18087) plus VF4-series cube relays on the board.
How it is wired — the five input wires
Every no-move complaint comes down to five wires at the J8 input connector, and the drawing spells out exactly what each must see:
- Red — +12 V power. Battery feed through a 30 A fuse (the board also carries a 5 A logic fuse and a 10 A plug-in breaker, Braun 24707).
- Black — ground. Clean chassis ground; the step will misbehave before it dies on a bad ground.
- Pink — ignition. Step on/off and ignition override input. With the ignition live the step retracts when the door closes regardless of the override.
- White/Black — door switch. This wire must receive ground when the door opens — that is the deploy signal. An open or corroded door-jamb switch is the most common 'step quit' cause.
- White/Green — dash warning light. Drives the step-out indicator on the dash.
The J5/J6 connectors carry the motor feed (yellow/white to motor), step light output, the step-full-out and step-full-in limit inputs, and the spare relay contacts. A closed-limit switch and harness mount (Valid VES01A025-01; the old Braun limit switch is the same 73950A microswitch used across Braun's lift line) tells the board when the step is home.
Manual release — step stuck out
The step has a manual cable release (Valid assembly VES01A023-01, Braun kit 73770-600) that pulls locking pins out of the drive sprocket so the sprocket free-spins. With the release pulled, the treads can be pushed in or out by hand — the ADA-relevant failure of a dead step blocking the doorway takes under a minute to clear:
- Kill the step (ignition off, or pull the 30 A fuse) so it cannot restart while your hands are in it.
- Locate the release cable under the step body (warning tag 28893 hangs at the handle on Braun-era units).
- Pull and hold the release, then slide the treads fully in (or out, if you need the step deployed).
- Release the cable and jog the tread slightly until the pins snap back into the sprocket — the step must be positively locked before the coach moves.
Because the step normally interlocks with the door and ignition, a step pushed in manually stays put; get the underlying fault (usually door-switch signal, fuse or motor) repaired promptly.
Parts breakdown highlights
The current Valid top assembly is VES01A001-01 (Rev D): main body VES01A016-01, slide assembly VES01A017-01, top step VES01A018-01, bottom step VES01A019-01, main harness VES01A014-01, light jumper harness VES01A022-01, drive chain VES01P061-01 (ANSI 35, 57.75"), front drive support VES01A031-01 and the controller Y006962. Assembly notes that matter in service: loosen the chain tensioner before feeding a new chain past the motor sprocket, pull the cable release so the sprocket spins free during chain installation, and torque the tensioner so the chain clears the carriage. The threaded fasteners on the drive get Loctite 243 (blue).
Braun-era units (parts list 28843A-3532) use: motor assembly 28999A, chain tensioner 73750W, nickel-plated #35 chain x 57" 84314R057 with connector link 84317, chain release assembly 75760CFA, limit switch 73950A, main harness 30135A, step/motor-home harness 28828A3532, light harness 28818A (feeds under-step light 30135A), relay 18087, fuses 18440F30 (30 A) and 18440F5 (5 A), breaker 24707, and manual release cable kit 73770-600. UHMW flat bearings PS1006 and track roller bearing 84305 are the usual wear points when a step gets gritty and slow.
Warranty summary (Valid Manufacturing, 2024 vehicle products)
Valid's standard warranty runs 12 months from delivery of the vehicle to the first retail purchaser, regardless of mileage, covers defects in material and workmanship in Valid parts and their installation, and follows the vehicle to subsequent owners subject to VML approval. Practical mechanics of a claim: request an RMA from Valid before repairing, quoting the part number and ideally the VIN; report defects within 30 days of appearance or the claim can be rejected; labor reimbursement is at a pre-approved base rate and the hours must be agreed before work starts; all replaced parts must be returned to Valid (Salmon Arm, BC) with the RMA number attached. Not covered: routine maintenance, accident/misuse/unauthorized modification, labor to make Valid components accessible, and consequential costs (towing, lodging, downtime). Emergency shipping of parts to make a vehicle drivable is covered with prior approval.
Maintenance schedule
| Task | Interval | Parts | Notes |
|---|---|---|---|
| Clean and lubricate slide, chain and bearings; verify limit switch and door-switch operation | 6 months | PS1006 UHMW flat bearing 1.5 in (Braun-era slide), 84305 Bearing track roller 20x52 | No OEM fixed interval published - service with each coach PM. Clean road grime from the slide and treads, lubricate the drive chain and check its tension (loosen/retorque tensioner so chain clears the carriage), inspect UHMW flat bearings and track rollers for wear, confirm the closed-limit switch clicks cleanly, and verify the door switch grounds the white/black wire when the door opens. Exercise the manual cable release so it is free when needed. |
| Electrical protection check: fuses, breaker, relay, grounds | 12 months | 18440F30 30 A standard blade fuse, 18440F5 5 A standard blade fuse | Verify the 30 A main fuse, 5 A logic fuse, and 10 A plug-in breaker (Braun 24707); inspect relay seating, harness connectors and the chassis ground. Confirm dash warning light (white/green) operates when the step is out. |
Troubleshooting
Step does not deploy when the door opens
- White/black door wire must receive ground when the door opens - test at the connector; suspect the door-jamb switch first
- 30 A fuse, 5 A fuse and the 10 A plug-in breaker (24707)
- +12 V on red at J8 and a solid chassis ground on black
- Pink ignition wire state - with ignition on and door closed the step is commanded in
Step stuck out and blocking the doorway
- Pull the manual cable release under the step, push treads in by hand, then jog until the sprocket pins relock
- Chain condition and tensioner - a jumped or jammed chain will stall the motor
- Motor supply (yellow/white wires) while commanding travel; listen for relay click on the controller
Step runs slow, grinds or stops mid-travel
- Grit in the slide - clean and lubricate; inspect UHMW bearings and track rollers for flat spots
- Chain tension (contact with the step carriage indicates a mis-torqued tensioner)
- Voltage drop under load - poor ground or corroded power feed
Step retracts unexpectedly / dash light stays on
- Ignition override behavior is normal: ignition on + door closed = retract
- White/green dash light circuit; step-full-in limit switch signal if the light never clears
- Closed-limit switch adjustment and mount (VES01A025-01)
Service parts reference
| Part number | Description | Type |
|---|---|---|
| VES01A001-01 | Executive Step complete assembly (Valid, Rev D) | repair |
| Y006962 | Executive Step controller circuit board | repair |
| VES01A023-01 | Manual cable release assembly (Braun kit: 73770-600) | repair |
| VES01A025-01 | Closed limit switch and harness mount assembly | wear |
| VES01P061-01 | Drive chain, ANSI 35, 57.75 in (Braun: 84314R057 + link 84317) | wear |
| VES01A014-01 | Main harness, electric step | repair |
| 28999A | Motor assembly, step (Braun-era) | repair |
| 73750W | Chain tensioner (Braun-era) | repair |
| 73950A | Limit switch assembly (Braun-era) | wear |
| 18087 | Relay 30/40 A SPDT 12 V plug-in | wear |
| 24707 | Circuit breaker 10 A plug-in | wear |
| 18440F30 | Fuse, 30 A blade | consumable |
| 18440F5 | Fuse, 5 A blade | consumable |
| PS1006 | UHMW flat slide bearing | wear |
| 84305 | Track roller bearing 20x52 | wear |
Based on: Valid Manufacturing parts breakdown VES01A001-01 Rev D (2024); Braun Executive Step schematic 100174 Rev B and step-motor-home parts list 28843A-3532; Braun Executive Step input wiring drawing (Wiring Step 35/41); Valid Manufacturing Standard Warranty - Vehicle Products 2024. This guide is an original work; always confirm procedures against your unit's build record and the manufacturer's current documentation.