An ACCU-Slide room that fails to seal evenly or develops loose cables may need its cable tension checked. BAL uses two different adjustment layouts: a standard cable-and-chain mechanism and a double-back mechanism for particular room dimensions. Identify which system is installed before moving any adjustment nuts.
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Standard or double-back cable adjustment?
The upper and lower cable runs use the standard routing around corner pulleys and chain-connected adjusters. Follow BAL's standard adjustment procedure rather than the double-back sequence.
See the standard cable-routing diagramLonger cables loop back through additional pulleys and connect to the chain. Adjustments are shared between the chain and the corner pulley brackets, following a different sequence.
See the double-back adjustment drawingOriginal cable and pulley diagrams
Use the manufacturer drawings to distinguish IN and OUT cable routes and identify top and bottom adjustment points. The double-back drawing uses different colours for opposing cable paths.
Standard cable routing
Open standard cable routing (PDF)Double-back cable adjustment
Open double-back adjustment diagram (PDF)On phones, open the PDFs in a separate viewer to enlarge the cable colours and labels.
Understanding the double-back adjustment sequence
With the slide fully extended, BAL calls for checking whether its top and bottom seals contact evenly. Its double-back instructions first loosen the IN cables and chain before bringing the exterior OUT bottom cables into contact, then matching the OUT top cable tension. The IN cables are subsequently adjusted to the specified deflection.
After adjustment, the manufacturer requires the chain jam nuts to be tightened, anti-vibration blocks restored and plastic Z dividers placed so the double-back connector pulleys do not collide. Use the complete factory instructions when performing the adjustment.
Inspect these symptoms before adjusting cables
| What you notice | What to check |
|---|---|
| Uneven room seal | Check top and bottom standoff contact at both ends before adjusting cable tension |
| Loose cable or chain | Inspect the cable-to-chain connector, bracket and opposing cable before taking up slack |
| Fraying near the jamb | Inspect standoff angle and corner pulleys; a new cable alone will not correct a rubbing condition |
| Cable jumps off pulley | Stop operating the room and inspect the pulley wheel, bracket and cable routing |
| Motor labours or stalls | Do not tighten both opposing cable pairs excessively; inspect for binding and electrical supply issues |
| Chain connectors interfere | On double-back systems, verify the specified Z dividers are in place along the connector-pulley path |
A room that is crooked or binding may have damaged brackets, improperly routed cables, a pulley problem or other mechanical interference. Do not compensate for an underlying hardware failure by repeatedly tightening cables.
Related ACCU-Slide repair parts
Replacement cable kit for specified ACCU-Slide applications.
View cable repair kitCable-chain adjustment bracket kit for compatible standard configurations.
View adjustment hardwareLeft- and right-hand corner pulley assemblies; confirm the original bracket and location.
Compare pulley parts diagramsCorner pulley wall reinforcement kit for the specified ACCU-Slide bracket installation.
View reinforcement kitFor the actual cable replacement sequence, see the BAL 22305 routing and repair guide. BAL also maintains its ACCU-Slide adjustment and troubleshooting instructions for different system versions.