Labrie Top Select, Maintenance Manual, Page: 82 / 145

74
Hydraulic System Maintenance
Lubricate and inspect all cylinder mounting points (pins, retaining bolts, etc.).
To perform an external inspection, do the following:
1. Verify that all hose and pipe connections are tight and that there are no external leaks.
2.
Inspect all cylinder heads for any leaks.
3. Inspect the surface of all the cylinder rods for unusual wear or scratches.
4.
On the hoist cylinder, inspect the air bleeder for any leaks. Tighten if necessary.
Main Hydraulic Valve
Located underneath the body floor rear section, the main hydraulic valve that is used on the T
OP
S
ELECT
™ integrates all hydraulic functions into one assembly. This valve is air-actuated with in-cab
and outside control levers.
The number of work sections composing this valve goes from 3 to 5, depending on the truck’s
configuration and the optional equipment chosen.
Figure 7 - 1 Main valve (3 sections)
Check the shut-off valve on the suction line is completely open before engaging the
hydraulic system.
WARNING!