Fuel - Bottarini GDP21 Maintenance And Operating Manual

8. Fuels
8.1 Recommended lubricant for
compressor
Note
In these screw compressors, circulating oil
has not only a lubricating function, but in
particular it also has cooling and sealing
functions. It is therefore exposed to more
difficult conditions. In particular the
temperature conditions at the installation
site and the consistency of the air (dust,
dirt, and humidity content, as well as
chemical influences) must be taken into
account when selecting a suitable
lubricant.
Attention
Do not mix oils of different
specifications.
The maintenance intervals and the
maximum and minimum operating
temperatures given in this operating
manual only apply when high-quality
multi-grade oils are used.
Use of the wrong oil leads to
impairment of function.
Change the compressor oil more
frequently than specified if the
equipment is operated under abnormal
conditions, i.e. at a high ambient
temperature, high air humidity or in a
dusty environment. If necessary,
analyse the oil.
Out of consideration for the high loads
imposed on the lubricant in screw
compressors with oil injection cooling, we
recommend the use of suitable, non
ageing, non foaming, corrosion-protective
oils. They must meet the following
requirements for hydraulic fluids:
H-LP 32 and H-LP 46 in accordance with
DIN 51524, Part 2, June 1985.
At normal operating temperatures, the
viscosity of the lubricating oils used should
conform with Viscosity Class ISO VG 32 DIN
51519, July 1976, viz. 28-35 mm
C (obtainable in 20 l canisters under
GARDNER DENVER ID No.: SACO32-
20).
At ambient temperatures continuously
above +25° C, the viscosity of the
lubricating oils sued should conform with
Viscosity Class ISO VG 46 DIN 51519,
July 1976, viz. 41-50 mm 2 /s(cSt)/40° C
(obtainable in 25 l canisters under
GARDNER DENVER ID No.: SACO46-
25).
Attention
Conventional engine oils marked HD
must not be used.
28
When using oils with the "Brief De-
scription HYD 10/HYD 20" in accordance
with the 'Standard Lubricants for Building
Machinery and Vehicles' published by the
'Hauptverband der Deutschen Bau-
industrie e.V.' (Principal Association of the
German Building Industry), only the
given hydraulic fluids may be used in
accordance with ISO VG 32 and
ISO VG 46.
If other lubricants are to be used, please
contact:
GARDNER DENVER S.r.l.
Via Tevere n°6
21015 Lonate Pozzolo (VA) ITALIA
Tel. 0331.349411 – Fax. 0331.301680
e-mail: bottarini@gardnerdenver.com
www.bottarini.it
or your authorized dealer or your local
branch.
8.2 Recommended engine oil
Lubricant specifications for the driving
engine can be found in the enclosed
engine operating manual.
For normal service conditions:
15W40 API CH-415J (ACEA E-3,
ACEA E 5)
2 /s (cSt)/40°
8.3 Tool lubricants
Attention
Do not run the machine with an empty
oiler tank! The tank must always
contain a minimum of 0.2 l of tool oil.
The wrong tool lubricants lead to
deposits that cause malfunctions in the
appliances connected!
For the perfect lubrication of concrete
breakers and pneumatic spades, we
recommend the use of GARDNER
DENVER oilers or automatic pipe oilers,
using the special synthetic GARDNER
DENVER oil AES 82.
The special advantages of GARDNER
DENVER oil are as follows:
* Biodegradable,
* Ice guard down to -50 °C, for use with
sound absorbers,
* Very good lubricity, thus wear-reducing,
*
No irritating exhaust gases, work in
enclosed rooms possible,
* Good cleaning effect, no residue
formation
* Excellent preservation properties,
protects from corrosion.
When using compressed air consumers
made by other manufacturers, then their
regulations must be observed.