The BAL G5 cable slide with a timing shaft has two motors at the bottoms of the side jambs and a mechanical shaft across the top to keep the two sides synchronized. The manufacturer has a separate exploded timing-shaft drawing for this design. Use the original diagrams below to identify the end couplers, drive shafts, bushings and support brackets before requesting a replacement.
Check for the G5 timing-shaft system
Look above the slide room, just beneath the top wipe seal, for a transverse timing shaft. The motors are concealed at the bottoms of the left and right jambs, rather than at the top. The factory identification diagram labels the left bottom motor R25078 and the right bottom motor R25079 for this specific G5 timing-shaft design.
The illustration also identifies the R854081 double wipe seal and R854082 D-shaped seal. Match the complete slide mechanism before ordering either seal or motor; the drawing does not establish a replacement for another G5 or G5.5 version.
Original manufacturer identification and exploded parts diagrams
G5 system identification
Open G5 mechanism identification (PDF)Exploded timing-shaft assembly
Open the exploded shaft parts diagram (PDF)On a phone, open each original PDF separately to enlarge the labels and inspect the shaft components.
Timing-shaft component numbers
| Manufacturer number | Part | Where it is used |
|---|---|---|
| 10800034 | Drive shaft | Two shafts at the left and right ends of the timing-shaft assembly |
| 10500133 | Flanged bushing | Supports each outer drive shaft in its bracket |
| 20200015 | Outer bracket | Mounting bracket shown at each end of the assembly |
| 20200016 | Inner bracket | Companion bracket shown near each drive shaft |
| 10800028 | Centre support bracket | Supports the centre span of the timing shaft |
| 20200031 | Coupler tube | Factory drawing labels both 8-inch and 18-inch coupler tubes with this number; match actual dimensions |
| Room-specific | ½-inch thin-wall EMT conduit | Central timing shaft; manufacturer specifies locally sourced conduit cut to the slide room's required length |
| Drawing-specified | #7-20 × 0.438-inch self-drilling screws | Fasten each coupler tube to the conduit, as shown in the assembly drawing |
For the coupler tubes, verify the installed length before ordering: BAL's drawing labels the 8-inch and 18-inch tubes with the same printed number. The central conduit is sized to the room and is not shown as a precut universal replacement.
Cable adjustment, timing and motor service
BAL provides separate procedures for normal cable adjustment, trapped chain slack or out-of-time motors, and motor replacement. These operations involve the cable tension and timing shaft connection; use the complete instructions for the correct G5 configuration.
Align the cable standoffs, then use the top- and bottom-interior adjustment sequence.
Open adjustment instructions (PDF)Shows how the coupling screws and cable/chain adjusters are accessed to restore synchronization.
Open chain-slack procedure (PDF)Identifies the jamb, seal, shaft and cable components accessed during motor replacement.
Open motor service instructions (PDF)For the newer slide with a different jamb motor arrangement, see the EXACT-Slide G5.5 jamb and cable guide and G5.5 motor identification guide. To compare all related references, visit the BAL G5 and G5.5 diagram index.