29
Hydraulic fluid recommendations
Use HLPD 22 (ISO-VG 22) "detergent” so that free water remains emulsified (e.g. to
prevent ice formation in winter) and to improve oil film adhesion.
In colder regions, use HLPD 10 grade hydraulic fluid.
OIL SPECIFICATIONS
Grade ISO - (32)
Gravity, API - 29.5 degrees
Pour Point, F - (-54 degrees)
VISCOSITY
@ 40 degrees C - 31.2 cSt
@ 100 degrees C - 6.2 cSt
VISCOSITY INDEX - 154 VI
Flash Point, F - 325 degrees
WARNING
Risk of poisoning through contact with hydraulic fluid (e.g. when changing).
Wear protective gloves when handling hydraulic fluid.
Handle and dispose of hydraulic fluid in accordance with local regulations.
Maintenance and repair
IMPORTANT
Repairs to load-bearing components are to be carried out only by an authorized repair
shop. The components must be tested by a qualified specialist and the results entered in
the inspection record book.
(1) After breakage of a load-carrying device, inspect the supporting structures and power
pack, including safety devices, to prevent the lifting device from falling or lowering when a
cable, chain, gear unit, or bearing nut breaks or when the hydraulic or pneumatic system
leaks. Replace damaged components.
(2) Replace pressure hoses as needed but no later than 6 years.
In the case of spindle-type lifting gear units with a bearing nut that is secured with an
unloaded, rotating secondary nut, the secondary nut must always be replaced along with the
bearing nut.
Enter pressure hose, bearing nut, and secondary nut replacements in the inspection record
book.
WARNING
Be careful when restoring the power supply after an interruption. Maintenance personnel
may be injured by an unintentional restart.
Summary of Contents for GPC 17 X-1
Page 48: ...44 Notes...
