EN
EN-20
80446693 Rev. B
5. MAINTENANCE
5.1 Safety information
WARNING
Obey the safety instructions given below and take note
of appropriate precautions. If you do not, you can cause
injury to people and damage to equipment.
A suitably trained and supervised technician must
maintain the blower. Obey your local and national safety
requirements.
Ensure that the maintenance technician is familiar with
the safety procedures which relate to the gases pumped/
compressed by the system in which the blower is installed.
Allow the blower to cool to a safe temperature before you
start maintenance work.
Isolate the blower from the drive system so that it cannot
be operated accidentally.
Recheck the blower rotation direction (see Section 3.7) if
the drive and transmission system has been disconnected
and then reconnected.
Take care to protect the inlet/outlet port sealing faces from
damage.
Do not re-use seals/gaskets if they are damaged.
Check the tightness of the system connections after
maintenance work is complete if you have connected
or disconnected any suction inlet or discharge (outlet)/
injection joints. The tightness of the system connections
must be in accordance with the requirements of your
applications.
5.2 Maintenance plan
The plan in Table 14 details the maintenance operations
required to maintain the blower in normal operation.
Instructions for each operation are given in the section
shown.
Note that:
If you use a mineral oil in the blower: you must change the
oil every 2000 hours of operation or once a year.
If you use a synthetic oil in the blower, you must change
the oil every 12 months.
If you use a Hibon Lube in the blower and you operate the
blower with a discharge (outlet) temperature above 120 ˚ C
(248 ˚ F), you must change the oil every 12 months.
If you use a Hibon Lube in the blower and you operate the
blower with a discharge (outlet) temperature below 120 ˚ C
(248 ˚ F), you must change the oil every two years.
When you maintain the blower, use
Ingersoll Rand
spares:
refer to Section 7.3.
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Operation
Frequency
Refer to
Section
Check the oil levels
Inspect the system installation
Change the oil
Overhaul the blower
Weekly
Monthly
See Section 5.2
4 yearly
5.3
5.4
5.5
5.6
After blower installation, the oil must be changed after 200
hours of running.
Table 14 – Maintenance plan
5.3 Check the oil levels
Ensure that you use the correct grade of oil and that
the oil levels in the blower are correct. If you do not, the
blower will probably be damaged during operation, or
its performance may be affected.
5.3.1 Inspect the oil-level sight-glasses
1.
Refer to Figure 1. Look at the oil-level sight-glass (6) on
the drive head plate (4):
If the sight-glass is dirty, use a suitable cloth to wipe it
clean.
If the sight-glass is damaged (that is, scratched,
cracked or corroded), or if there are signs of oil
leakage from the sight-glass, you must replace it:
contact your supplier or
Ingersoll Rand
.
2.
Look at the oil-level sight-glass (11) on the non-drive
head plate (12):
If the sight-glass is dirty, use a suitable cloth to wipe it
clean.
If the sight-glass is damaged (that is, scratched,
cracked or corroded), or if there are signs of oil
leakage from the sight-glass, you must replace it:
contact your supplier or
Ingersoll Rand
.
5.3.2 Drive Head Plate
1.
Refer to Figure 1, detail B. Look at the oil level in the
sight-glass (6) on the drive head plate (4):
If the oil level is below the minimum level mark (19),
continue at Step 2 to add more oil.
If the oil level is above the maximum level mark (18),
drain oil from the blower until the level is correct: refer
to Section 5.5.
2.
Refer to Figure 1. Remove the oil filler-plug (16) from
the filler port on the top of the drive head plate (4).
3.
For new oil of the correct type (see Section 2.6)
through the filler port and into the head plate until
the oil-level reaches the maximum level mark (detail B,
item 18). If the oil level goes above the maximum level
mark (18), drain oil from the blower until the level is
correct: refer to Section 5.5.
4.
Refit the oil filler-plug (16) to the filler port on the top
of the drive head plate (4).
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