Maintenance and inspection procedures
(6) Inspection, maintenance and replacement of J5 axis timing belt
The reference figure at inspection, adjustment, and replacement of the timing belt is shown in
(RV-
4F/7F series, RV-7FLL) or
(RV-13F/20F).
Fig.5-10 : Inspection, maintenance and replacement of J5 axis timing belt (RV-4F/7F series, RV-7FLL)
Fig.5-11 : Inspection, maintenance and replacement of J5 axis timing belt (RV-13F/20F)
■ Inspecting the J5 axis timing belt
1) Confirm that the robot controller power is OFF.
2) Refer to
Page 82, "5.3.2 Installing/removing the cover"
, and remove the No. 2 arm cover L.
3) Visually confirm that the symptoms indicated in
"(1)Timing belt replacement period"
have not occurred with
the timing belt.
4) Confirm that the belt tension is adjusted to slacken as shown in
■ Adjusting the J5 axis timing belt
1) Carry out steps 1) and 2) indicated in
" ■ Inspecting the J5 axis timing belt"
above.
2) Lightly loosen the two (R-4F/7F series, RV-7FLL) or three (RV-13F/RV-20F)
motor plate fixing screws
<1>.
(Do not loosen too much.)
3) The nut which is fixing tension adjustment screw <3> is loosened, turn tension adjustment screw <3>, and
adjust the tension of timing belt <2>.
When the screw is turned to the right, the belt will be stretched, and when turned to the left, will loosen.
Adjust the belt tension slack to within the range as shown in
If the belt is loosened too much when adjusting the tension causing it to come off the timing pulleys <4> and
<5>, or if the belt and pulley teeth engagement is deviated, the machine system's origin will deviate.
4) After adjustment fastens the fixing nut of tension adjustment screw <3>, and certainly fixes tension
adjustment screw <3>. Moreover, also fasten
motor plate fixing screw
<1> certainly. (RV-4F/7F series and RV-
7FLL: two pc. RV-13F/20F: three pc.) Improper tightening can cause the belt to loosen with vibration.
<1>Motor plate fixing screw
<5> Timing pulley
(joint side)
<4> Timing pulley
(motor side)
Mark
<3>Tension adjustment screw
With the fixing nut
Mark
<2> Timing belt
RV-4F/7F series
RV-7FLL
<1>Motor plate fixing screw
<5> Timing pulley
(joint side)
<4> Timing pulley
(motor side)
<3>Tension adjustment screw
With the fixing nut
<2> Timing belt
RV-13F/20F
<1>Motor plate fixing screw
Mark
Mark