BAL ACCU-Slide systems use a chain-and-cable drive to move the RV slide room. If the adjustment connector or a corner pulley needs replacing, match the existing mechanism first: the standard cable connection, double-back arrangement and wall-reinforcement parts are different pieces.
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Standard connector, double-back connector or reinforcement?
BAL 22504 · Standard cable/chain connector
Connects the cable adjustment rod to a compatible ACCU-Slide drive chain. It is not the complete chain, replacement cable or gearbox.
View the 22504 adjustment kit
BAL 21700238 · Corner-pulley wall reinforcement
Reinforces the mounting area behind a pulley bracket if the wall and header structure remain sound. It does not replace the pulley wheels or the bracket itself.
View the 21700238 reinforcement kitThe 22509 double-back cable-chain adjuster is a third, separately identified part. Its design routes cable around additional pulleys and must not be replaced with the standard 22504 kit based only on a similar threaded rod.
Original BAL pulley and chain component illustrations
The manufacturer compares 22302L/R standard corner brackets with 25042/25043 double-back brackets, and shows the 22504 and 22509 adjustment kits on the same illustrated sheet.
Open BAL's original chain and pulley parts diagram (PDF)
Open the PDF separately on a phone to enlarge the part-number photographs.
BAL part numbers to compare
| Part number | Component | How to identify it |
|---|---|---|
| 22504 | Standard cable-to-chain adjustment bracket | Standard ACCU-Slide chain and cable connection; match the existing bracket |
| 22509 | Double-back chain/cable adjuster | For the different double-back routing and connector design |
| 22302L | Left-hand corner pulley bracket | Standard corner arrangement; inspect handed position |
| 22302R | Right-hand corner pulley bracket | Not interchangeable with the left-hand pulley bracket |
| 25042 | Double-back left-hand corner pulley | Uses the double-back bracket geometry, not 22302L |
| 25043 | Double-back right-hand corner pulley | Uses the double-back bracket geometry, not 22302R |
| 21700238 | Corner pulley wall-reinforcement kit | A reinforcing plate fitted behind an existing corner pulley bracket |
| 21700148 | Interior standoff reinforcement kit | For the interior cable-standoff mounting area, not the corner pulley wall |
| R854323 | No. 35 drive chain | Confirm the installed mechanism; BAL lists this chain through the RV manufacturer |
| R854057 / R854071 | Z cable separators | 32-inch or 42-inch separator for applicable double-back arrangements |
When checking compatibility, note whether your system is G4 Econo, Hybrid or ABS, and whether it has standard or double-back routing. The G4 Econo factory parts sheet and G4/Hybrid parts comparison show additional system-specific pieces.
When the pulley bracket pulls away from the wall
BAL identifies 21700238 for a sound wall that has begun to deflect or where a corner pulley bracket has pulled away from its mounting surface. The reinforcing plate is secured behind the existing bracket. A different service kit, 21700148, is intended for interior standoff reinforcement.
If the cable is rubbing, jumping a pulley or becoming slack, also inspect the cable route and adjustment hardware rather than simply tightening the connector. For the separate adjustment sequences, see our ACCU-Slide cable adjustment guide and the BAL double-back procedure (PDF).
Parts pictured in this guide
Select an image for product details, or view the diagrams and parts lists. Match the complete model and part number before ordering.
BAL 21700238 ACCU-Slide Corner Pulley Bracket Wall Reinforcement KitPart 21700238 · Component illustration
BAL 21700148 Slide-Out Interior Standoff Reinforcement Service KitPart 21700148 · Component illustration