7. Maintenance contents
The Biodex UBCs are designed to provide many years of dependable use. To help ensure
this product performs to maximum specifications, and to increase the life of the product,
please note the following general cleaning instructions.
Daily Maintenance
• As required, clean all exterior surfaces, upholstery and restraining straps.
Specialized vinyl cleaners or protectants are recommended for upholstery and
cushions. Otherwise, use a solution of warm water and mild detergent.
• As needed, wipe the display using a soft rag dampened with alcohol.
NOTE: Do not use cleaning solutions containing ammonia.
Annual Maintenance
The following maintenance operations should be performed annually.
Tools Required: Phillips Screwdriver, set of Allen Wrenches, Adjustable
Wrench, White Lithium Grease.
Before proceeding with the following procedures:
1. Verify operation of all functions.
2. Remove all the screws on both upper covers and let covers hang straight down.
Adjust for Axial Play in the Sprocket Axle
Check for axial play on the sprocket axle. If an adjustment is necessary:
1. Remove the arm cranks (Figure 3 in Service Procedures) so the covers can be removed.
To do this, remove the hex nut at the hub of each crank, drive the cotter pin through
and discard. Replacement part number for the cotter pin is #C08602. Do not re-use
cotter pin.
2. Loosen the hex socket head screw on the clamp collar and tighten collar to remove
all axial play in the sprocket axle. Re-tighten the hex socket locking screw on the
clamping collar.
Lube Chain
Apply a liberal amount of white grease to the chain.
NOTE: Refer to Chain Replacement Procedure in Chapter 11, Service Procedures, to verify
proper alignment, tension, and tracking of the chain and timing belts.
Lube Idler Rollers
Apply white grease to the flat shaft that goes through the spring of the idler rollers.
Lube Locking Knobs
Back out the locking knob on each crank assembly and apply white lithium grease
to the threads. Expose threads on the locking knob located on the arm adjust tube
and apply white grease.
Lube Chair Slide Rail
Wipe down slide rail with a clean dry cloth and lubricate with a silicon or teflon-based spray.
Chair Inspection
Inspect the chair for stability and ease of movement.
MAINTENANCE — 18 —
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