5.1. Grease Replacement & Injecting Grease after Replacing the Reducer

Attention

If greasing is performed incorrectly, the internal pressure of the grease bath may suddenly increase, possibly causing damage to the seal, which would in turn lead to grease leakage and abnormal operation. When performing greasing, therefore, observe the following cautions.

(1) Make sure to wear safety glasses before injecting grease and inspection.

(2) Before starting to grease, remove the plug from the grease outlet.

(3) When loosening a plug, grease and the plug could be discharged. Block the outlet with a thick cloth to prevent injuries caused by discharged grease or plug, and keep a distance away for safety. (Do not look into the grease outlet.)

(4) Whenever possible, avoid using a compressed-air pump, powered by the factory air supply. If the use of a compressed-air pump is unavoidable, restrict the greasing pressure less than 2.5ar(2.5kgf/cm2)

(5) Use grease only of the specified type. If not, may damage the reducer or lead to other problems.

(6) After greasing, confirm that no grease is leaking from the grease outlet and that the grease bath is not pressurized, then re-attach the plug in the grease outlet.

(7) To prevent accidents caused by slipping, completely remove any excess grease from the floor or robot.

(8) When an ambient temperature is more than 35℃, be sure to shorten the period of replenishment in half.

n Procedure in discharging excessively fueled grease and residual pressure after grease replacement and injection

(1) Attach a grease receiver or a hose to the grease outlet to prevent contamination from discharged grease.

(2) Operate it within a range without surrounding and interference under the following conditions.

axis	Operation angle (1 axis /2 axis /3 axis)	Operation speed	Operation time
1 axis ~ 3 axis	80°/90°/70° or more	50 %	Least 20 min
4 axis ~ 6 axis	60°/120°/60° or more	100 %	Least 20 min
Arm Frame Gear Box	60°/120°/60° or more	100 %	Least 20 min

(3) Wipe the outlet port with a cloth and attach the plug.

n Grease replacement cycle

Grease replacement cycle

ü S axis reducer, Arm Frame gear box : 24,000 hours

ü Other Reducers : 12,000 hours

ü Gas spring bearing : 6 months (3 months for severe use)

If there is still noise in the reducer even after using specified grease, check the state closely for 1-2 days during operation. Generally, the noise will go away.

(The noise will go away if you run the axis at a high speed for 5-10 minutes).

The noise may be caused by following reasons.

1. Operation after greasing or replacing the reducer

2. Operation after long-term storage

3. Operation at a low speed

4. Operation at a low temperature

5.1.1. S-AxisReducer

5.1.2. H-Axis Reducer

5.1.3. V-Axis Reducer

5.1.4. R2- Axis Reducer (HS200L)

5.1.5. B- Axis Reducer (HS200L)

5.1.6. R1- Axis Reducer (HS200L)