427.7 Instructions for Lubrication7.7.1 Left & right caster bracket. (Figure 7-1)7.7.2 Left & right joint of backrest. (Figure 7-2)7.7.3 Left & right connecting tubes. (Figure 7-3)7.7.4 Left & right trunnions. (Figure 7-4)Figure 7-1 Figure 7-2 Figure 7-3 Figure 7-4CAUTION● Before lubrication, do clean the area.● When lubricating, apply only 1-2 drops of oil (not grease), as extra oil willdrip on the rug and cause pollution as a result of over-lubrication.● Depending on how often you use the chair, normally 1-2 times oflubrication per month is fine. Proper lubrication can extend the life span ofa part in addition to prevent noise from accruing. Check if the bolts arefastened while lubrication.
