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Section 1 Maintenance
SCC1000C Crawler Crane — Maintenance Manual
Table 5-6 Recommended Gear Oil
Suitable Temperature
°C(°F)
Designation
-40
(-40)
-30
(-22)
-20
(-4)
-10
(14)
0
(32)
10
(50)
20
(68)
30
(86)
40
(104)
50
(122)
220LS2
Table 5-7 Recommended Hydraulic Oil
Suitable Temperature
°C(°F)
Designation
-40
(-40)
-30
(-22)
-20
(-4)
-10
(14)
0
(32)
10
(50)
20
(68)
30
(86)
40
(104)
50
(122)
L-HM46 Antiwear hydraulic oil
L-HV32 Low temperature
antiwear hydraulic oil
L-HM68 antiwear Hydraulic oil
-- L-HM46 anti-wear hydraulic oil can be
used in a wide range, and suitable for
ordinary regions�
-- L-HV32 Low temperature (flow point:
-42°C(-43�6°F)) hydraulic oil is usually
used in extremely cold regions (-30°C(
-22°F) or below), such as Russia, China’s
north-eastern region�
-- L-HM68 Anti-wear Hydraulic oil is usually
used in tropical areas such as Middle
East and India�
-- Choose the appropriate hydraulic
oil according to the region where the
crane operates� The responsibility of
changing oil (with charge) lies on the
company before the main machine is
delivered from the factory and hereafter
lies on the customer�
When operating in ambient temperature below
0°C(32°F), the following warm-up procedures must be
carried out to ensure the safety of hydraulic system:
-- Start the engine and run at idle speed for 7-10
minutes before speed up to 1000-1200r/min, and
continue to run the engine for 30-40 minutes or
longer without load or any operation hereafter,
which means to raise the temperature of
hydraulic oil up to over 20 °C(68°F).
-- Start normal operation after completing these
warm-up procedures, meanwhile adjust the
length of warm-up period according to the
ambient temperature. During normal operation,
actions of control levers and pedals should be
slow and pay close attention to the running
status of the system. Hydraulic components
might be damaged if operating with hydraulic oil
temperature below 20°C(68°F).
CAUTION
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