■ Replacing the J6 axis timing belt
1) Carry out steps 1) and 2) indicated in
2) Make sure that the pulleys do not move while replacing the belt. If the pulley <4> and <5> position relation
deviates, the position could deviate.
3) Make marks on the timing belt <2> and timing pulleys <4> and <5> with a felt-tip pen as shown in
(RV-4F/7F series, RV-7FLL) or
timing pulleys <4> and <5> does not deviate.
4) Lightly loosen the two pc. motor plate fixing screws <1>. (Do not loosen too much.)
5) Loosen the nut fixing tension adjustment screw <3>. Loosen the tension adjustment screw <3>, and remove
the old belt.
6) Copy the marks onto the new timing belt. Make sure that both belts are tense when making the marks.
7) Align the new timing belt with the marks on the timing pulleys <4> and <5>, and install.
8) Refer to
" ■ Adjusting the J6 axis timing belt"
9) The position could deviate after the belt is replaced. Confirm that the position has not deviated. If deviated,
Page 104, "5.6 Resetting the
" ■ Inspecting the J6 axis timing belt"
(RV-13F/20F), so that the engagement of the timing belt <2> and
"(8)Timing belt tension"
origin", and reset the origin position.
5 Maintenance and Inspection
to adjust the tension.
Maintenance and inspection procedures 5-93