Jedmed J-II, Operating And Service Manual, Page: 15 / 30

S-II & J-II Chairs
Operating / Service Manual
14
S-II & J-II Chairs
Operating / Service Manual
15
MAINTENANCE
Scheduled Maintenance
All chairs (motorized and manual) should be cycled fully up and down 8-10 times every
60 days. Even if chair is used regularly, often the working height is within a limited range.
Cycling the chair through its full range will insure proper lubrication of the hydraulic piston
and seals, thus maximizing the life of the base.
Moving the Chair
Never lift or move any chair (motorized or manual) without first lifting firmly on the pedals
or lever to lock base rotation. Locking base rotation also locks the lift piston from moving.
If chair is lifted when hydraulic piston is not locked, air may be introduced into the hydraulic
lines. If so, the chair may slowly drift downward or feel "spongy" when returned to service.
Should this occur, bleed air from the hydraulic system as described below.
Bleeding Air from Hydraulic System
1. Raise chair to its highest position.
2. Continue pumping for 10-15 seconds.
This cycles the hydraulic pump and works the air out of the system.
3. Lower chair completely.
4. Raise chair to intermediate height and test.
5. If air persists, repeat steps 1-4, as needed.
Grounding continuity should be checked periodically to
insure patient and user safety.
WARNING
!