Sterling SXS Series - Manual (Page 52)

BJ5-620 Maintenance 52 of 73
Transporting and Storing the Cutting Knives
WARNING!
• Danger of cutting caused by sharp knives.
• Serious injury, in particular to hands and fingers, can result.
• Wear protective gloves.
• Only transport and store the packaged cutting knives.
• Grease the cutting knives well so they do not rust. Protect the cutting
edges with doubled cardboard and use adhesive tape to safeguard the
knives against slipping out of the sides of the sheath.
•
De-grease the cutting knives so that they can be gripped safely after
unpacking.
Hydraulic Maintenance
Hydraulic oil has to be filled into the tank before start-up of the machine. The type of oil
that should be used depends on location. Recommended oils include of the type DIN
51524 HLP 32 for areas with temperatures below 32°F (0°C) in the winter and HLP 46 for
temperatures of around 86°F (30°C) in the summer. For extremely hot tropical areas (i.e.
Thailand, Malaysia, Nigeria etc.) it is recommended to use HLP 68. The first oil
replacement should be done after 1,000 operating hours and then after every 2,000
operating hours. The oil filter must be replaced too.
NOTE: Overheating of the oil and dirt in the oil will cause damage to the hydraulic
system if the oil is not replaced in the specified amount of time. This can lead to
complete standstill of the machine.
The same type of oil must be used when adding hydraulic oil. If the same type of oil is
unavailable or if it is unknown, then the oil in the tank and the entire hydraulic system has
to be removed and carefully and completely flushed. The system may only be filled with
new oil after this procedure has been done because it is necessary in preventing the valves
from gumming.