Maintenance And Inspection - KDK K40DSH2NET Operating Instructions Manual

Maintenance and Inspection

To use the product safely for a long time, please follow the instructions below.
1. For regular inspections, contact your vender or electrician.
2. The estimated life expectancy of the motor is about 20,000 hours, but it may vary depending on the use conditions.
If you find any abnormal noise, please replace the motor.
Note:
Regular inspections will extend the product life as well as maintain the operation efficiency and prevent the excessive energy consumption.
(When the product is used in severe conditions, the inspection cycle should be shorter than that in the below table.)
Daily check (for customer)
1. Check if the product generates any abnormal noise or vibration compared with the initial condition (by hearing and touching
etc.)
2. Remove the drain gum, and check that no water remains inside the product. If any water remains, remove it completely and
ask a professional cleaning service to clean inside the product. And, take measured to prevent water from entering the product.
After checking is completed, be sure to mount the drain gum.
Regular inspection (for service company)
Inspect the product by following the table.
Part name
1
1 Entire fan
Casing
2
Guide vanes
3 Wheel
4 Motor
5 Terminal
Note:
The table above gives general indications, and the contents may vary depending on the use situation or installation condition.
The typical sample operation time is 10 hours per day, 300 days per year, and 3000 hours as a standard use.
6
Elapsed years
2 3 4 5 6 7 8 9 10 11 12 13 14 15
Meaning of symbols:
: needs regular inspection
: needs to replace regular replacement parts
Criteria
Inspection
(Indication)
• Check noise and
vibration.
• No abnormal noise
(by hearing and
or vibration.
touching)
• Check attaching
screws for looseness.
• No looseness.
(with tool)
• No abnormal rust,
• Check the
corrosion,
appearance.
extraneous
(visually)
material, or
deformation.
• Check noise and
• No abnormal noise
vibration.
or vibration.
(by hearing and
touching)
• No abnormal rust,
• Check the
corrosion,
appearance.
extraneous
(visually)
material, or
deformation.
• Check rotation. • No abnormal sound.
(visually, with • No contact with fan
manual rotation) casing.
• Check noise and
vibration.
• No looseness.
(by hearing and
touching)
• No abnormal rust,
• Check the
corrosion,
appearance.
extraneous material,
(visually)
or deformation.
• Check noise and
vibration.
• No abnormal noise
(by hearing and
or vibration.
touching)
• Check terminal
block and screws
• No looseness.
for looseness.
(with tool)
Maintenance Remarks
• Tighten foundation
bolt and hanging bolt.
• If difficult to repair,
replace the product.
• Tighten with tool.
• Clean and remove
extraneous material.
• If there is abnormal
rust, corrosion, crack,
or deformation,
replace the part.
• Tighten each
attaching screw.
• If there is damage
by contact, replace
the part.
• Clean and remove
extraneous material.
• If there is abnormal
rust, corrosion, crack,
or deformation,
replace the part.
• If there is damage by
contact, replace the
part.
• Tighten with tool.
• Clean and remove
extraneous material.
• If there is abnormal
rust, corrosion, crack,
or deformation,
• Regular replacement
replace the part.
parts.
• If there is any
problem, replace the
part.
(The terminal is not
supplied with
• Tighten with tool.
K25DSF2NET.)