Stellar Industries 28000 - Manual (Page 43)

39 Hydraulics - Electrical 39
Chapter 8 - Hydraulics - Electrical
Never modify or alter any of the
equipment, whether mechanical,
electrical, or hydraulic, without Stellar
Industries’ approval.
Release system pressure before attempting
to make adjustments or repairs.
Do not attempt service or repair when PTO
is engaged.
Disassemble and assemble hydraulic
components on a clean surface.
Clean all metal parts in a nonflammable
cleaning fluid. Then lubricate all
components to aid in assembly.
Hydraulic fluid expands when heated. This
raises the pressure in an unventilated tank.
Release the tank pressure before removing
the cap completely. Failure to do so may
cause the oil to shoot out of the tank very
rapidly and cause severe burns.
Warning! If hydraulic fluid escapes, the
boom or crane can fall immediately.
Make sure the ground or blocking is
supporting the boom before performing
any maintenance or repair. Do not rely on
the hydraulic fluid to support the boom or
crane.
Contaminants in a hydraulic system affect
operation and will result in serious damage
to the system components. Dirty hydraulic
systems are a major cause of component
failures.
If evidence of foreign particles is found in
the hydraulic system, flush the system.
When installing metal hydraulic tubes,
tighten all bolts finger tight. Then , in order,
tighten the bolts at the rigid end, the
adjustable end, and the mounting
brackets. After tubes are mounted, install
the hoses. Connect both ends of the hose
with all bolts finger tight. Position the hose
so it does not rub the machine or another
hose and has a minimum of bending and
twisting. Tighten bolts in both couplings.
Due to manufacturing methods, there is a
natural curvature to a hydraulic hose. The
hose should be installed so any bend is
with this curvature.
WARNING!
Please read the following section before performing any work on the hydraulic/electrical
system of your crane. This section contains vital safety information and maintenance
guidlines for your crane. If questions should arise, please contact
Stellar Customer Service at 800-321-3741