Nordco TRIPP HD, Operation Manual

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ROUTINE MAINTENANCE
MAR 2016 49457610 TRIPP HD RevB 7-9
D8. HYDRAULIC – Check Hydraulic Oil
Level and Quality
Inspect the oil level on a daily basis (or every 10 hours
of operation) by reading the sight gauge located on the
side of the reservoir. At full level, the oil should be at
the top of the sight gauge. See Figure 7-9. The
hydraulic system uses SAE-20 (ISO 46) oil. Before
filling the system with hydraulic oil, be sure that the
fluid is as specified and that it is clean. Do not use
cloth strainers or fluid that has been stored in
contaminated containers.
Care should be taken to keep the hydraulic oil free of
dust, water, sealing compounds and other foreign
matter. While using the sight gauge, verify oil quality.
If the oil becomes dark or milky colored, change it
immediately!
IMPORTANT
ALWAYS add hydraulic oil to the reservoir through a
filter.
NEVER OVERFILL the RESERVOIR.
NEVER use hydraulic brake fluid in lieu of hydraulic oil.
Figure 7-9
D9. HYDRAULIC – Check Hydraulic Filter
Indicators (Main Control Panel)
To keep the hydraulic system clean and free from
moisture, there is a return line filter and a strainer in the
hydraulic system.
The hydraulic oil filters have indicator lights on the
center console to provide a visual display of filter
cleanliness. Units are equipped with an additional
Main Pump (Pressure) Filter and a filter indicator box
that gives the operator a visual status of the condition
of the filters. The green light indicates no service
required and the red light indicates service is required.
The suction strainer has no indicating device and must
be visually inspected.
D10. HYDRAULIC – Inspect Hoses and
Fittings for Leaks
1. Look for loose or disconnected hoses. An oil spot
below the machine is a good indication of a loose
hose or hydraulic component.
2. Make certain the shut-off valve on the suction
strainer is OPEN. Opening the valve can often
correct what appears to be a malfunction.
3. Inspect all vital hose connections, especially at the
main pump, and the main pump hose connection at
the manifold.
4. Look for cover damage and/or indications of
twisted, worn, crimped, brittle, cracked, or leaking
hoses. Hoses with their outer cover worn through
or otherwise damaged should be considered unfit
for further service.
IMPORTANT
Recommended rule for hydraulic hoses:
If in doubt, toss it out.

DANGER
PRESSURE HAZARD! High pressure leaks
can cause personal injury and/or death.
Remove hoses/fittings only when system
is not pressurized.
D13. RAIL LIFT & STABILIZER
> Grease Rail Lift Cylinder Pivots
D14. RAIL LIFT & STABILIZER
> Grease Rail Clamp Lever Pivot Pins