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tension is appropriate and steel cables are correctly fixed on the top of
weight plate.
(9) Inspect pulleys: check if there’s abrasion, flaw, breach or deletion.
Abrasion of pulley surface may lead to severe damage to steel cables.
Therefore, abraded or damaged pulley must be replaced immediately.
Make sure pulleys can revolve flexibly during usage and do not sway to
left and right with big amplitude. Big amplitude indicates that fastening
bolt or bearing is damaged; in this case, dismantle pulley and inspect it. If
any damaged bearing, it must be replaced immediately.
(10) Inspect weight plates and selector pin: check if there’s burr or damage;
wipe each weight plate and guide rod to remove dirt and dust. Make
sure that selector pin can be inserted into each weight plate and stably
retained there (Picture 2).
(11) Inspect bearings and lubricate shaft bushing: it’s recommended that a
small amount of silicon oil should be used for lubricating shaft bushing
which is used for supporting shaft. Spray the oil onto shaft and twist the
shaft several laps inside shaft bushing; meanwhile, check whether the
bushing is excessively abraded or damaged.
Guide rod
Steel cable
Head plate
Selector pin
Weight plate
Lubricate it regularly.
Picture 1
Picture 2
