HP-400P HORIZONTAL BAND RESAW -46-
Hydraulic System Major Service
The hydraulic system major service consists of performing a complete “Minor Service,” draining the old
hydraulic fluid, cleaning the tank screen, cleaning the tank, and filling the tank with new fluid.
WARNING
：
The hydraulic system on this machine creates very high pressure and the hydraulic fluid gets hot. Always
stop the resaw, open the conveyor speed valves, make sure the pressure gauge reads 0 psi, and make sure the
fluid cools down before removing any lines or servicing the hydraulic system.
The hydraulic tank, when filled correctly at the sight window, holds approximately 13.5 gallons of hydraulic
fluid. Before draining the hydraulic fluid, make sure you have a drain pan that will hold that much fluid or
make sure that you are prepared to drain the tank, plug the tank, empty your drain pan, drain the tank, and so
forth.
To drain the hydraulic fluid
：
1. Read the hydraulic safety instructions on page 6 before continuing.
2. With your drain pan in place, remove the drain plug.
3. Replace the drain plug after the hydraulic tank is completely drained.
To clean the tank screen
：
1. Remove the access plate on top of the hydraulic tank.
2. Remove the tank screen, clean it with solvent and compressed air, and allow it to dry.
3. Re-install the tank screen after you clean the bottom of the tank.
To clean the bottom of the tank
：
1. Use a lint free rag to wipe up and remove the sludge from the bottom of the tank.
2. Use clean hydraulic fluid on a clean rag to clean additional contaminants from bottom and sides of the
tank.
To fill the tank with new fluid
：
1. Make sure that you have re-installed the tank screen, that the drain plug is tight, and that you have replaced
the access plate on top of the tank.
2. Using an ISO VG 10—Antiwear 10 Hydraulic Fluid, fill the tank until the sight window is 2/3 full or the
fluid level is at the 60°C mark on the sight window thermometer.
Note—This will take approximately 13.5 gallons.
