5
5. Maintenance and Inspection
5.1 Troubleshooting and corrective measures
5.2 Maintenance and inspection
■
Oiling
For lubrication of the pump, perform oiling with a lubricant once every 10 days. Apply the lubricant as follows.
1) Remove the air regulator.
2) Inject several drops (approx. 0.5ml) of lubricant to the air supply port as shown in
the figure at right. (Fig. 8)
Use turbine oil first class ISO(VG-32) as the lubricant.
■
Inspection
・
The hose is a consumable part. Check it periodically. If any blemish or leakage is
found, replace the hose little earlier.
・
The packing and slide portion parts of the pump are worn away. Check and
replace them once a year.
Fig. 8
Symptom
Cause
Contents of inspection
and corrective measure.
Check if the supply air pressure is normal.
Adjust the supply air pressure
between 0.3 and 0.7 MPa.
↓
(Operate the pump
with the discharge-side hose removed.)
→
If the pump is operated,
the outlet valve of the hose is clogged.
→
If the pump is not operated,
the pump is defective.
Ask the dealer to repair it.
Check if grease is in the pail.
Supply grease.
Check if a cavity is produced in the suction tube.
Gather grease toward the middle.
The lower pump is defective.
Ask the dealer to repair it.
Check if the supply air pressure is lowered.
Check the supply air pressure.
The lower pump is defective.
Ask the dealer to repair it.
Check the discharge-side hose
and connecting section for leakage.
Check the hose
and the connecting section.
Check if the grease in the pail has been used up.
Supply or replace grease.
The lower pump is defective.
Ask the dealer to repair it.
The pump cannot be operated.
Grease comes out
but the flow rate is low.
The pump is continuously
operated without stop.
(even if the outlet valve
is closed)
The pump is operated
but no grease comes out.
