Century 974W25 Installation, Operation, Maintenance, Parts page 67

Section V - MAINTENANCE
5.1 The continued operation of your CENTURY Hydraulic Wrecker
is largely dependent upon strict adherence to a properly scheduled
preventive maintenance program. To help you in this program,
CENTURY has provided the following information regarding
lubrication, preventive maintenance and hydraulic system care.
5.2 HYDRAULIC SYSTEM
The importance of absolute cleanliness of the hydraulic system
cannot be over-stressed. The smallest amount of grit, metal flake or
other foreign material in the system can cause extensive damage to
pumps, motors and valves. CENTURY has taken every measure to
assure that each component and fitting was thoroughly cleaned
before your unit was shipped to you. Therefore, servicing of the
system should be done with extreme care.
(a) Before checking oil level in reservoir, wipe away all dirt, grease
and grime around filler cap before removing it. Make certain that
all containers, funnels and pouring spouts are absolutely clean
before filling reservoir.
(b) When replacing hoses, fittings or other components, clean
thoroughly; then assemble carefully.
(c) Failure to observe these precautions, and failure to change the
filter element at regular intervals could result in loss of your
warranty in the event of failure of certain components.
5.3 LUBRICATION & PREVENTIVE MAINTENANCE
The following general lubrication and preventive maintenance
should be performed at least once per month for moderate usage
or more often as required, for heavy usage.
(a) Inspect, repair or replace any worn, cracked, leaking, otherwise
damaged components including, but not limited to, the following:
1. Hydraulic Oil Filter
2. Oil Reservoir
3. Controls
4. Cables and Fittings
5. Hydraulic Hoses and Fittings
6. Lights and Wiring
7. Winches
8. Cylinders
9. Pivot Bearing Surfaces and Pins
(See Lubrication Charts, page V-4 & V-5.)
V-1