Section 6 - Service
HV-18 revised 11/18 SCHWARZE HYPERVAC 85
Hydraulic Tank
A Fill Opening
B Hydraulic Fluid Gauge
C Hydraulic Return Filter
D Hydraulic Tank Drain
E Hydraulic Suction Filter/Strainer
The hydraulic tank is located on the left side of the
sweeper between the power module uprights.
Filling The Tank
1. Examine the hydraulic fluid sight-level gauge located
on the side of the tank (B). The fluid level should
register at or about the high mark.
2. Locate the fill opening on top of the hydraulic tank. (A)
3. Remove the fill cap.
4. Use a funnel to fill the hydraulic reservoir to the
desired level with one of the following:
• Shell Tellus 68 hydraulic fluid
• Citgo 68 hydraulic fluid
• An equivalent 22-weight (SAE) fluid
• 30-weight (SAE) fluid for systems operating with an
ambient fluid temperature greater than 100ºF.
5. Replace the cap
Draining The Tank
1. Locate the drain hose attached to the bottom of the
hydraulic tank. (D) This drain hose exits the bottom of
the tank, and is usually stored between the uprights
and engine, or run down the back of the power
module beside the fan house.
2. Place a 25 gallon capacity container on the ground,
positioning it below the drain.
3. Remove the JIC plug from the end of the drain hose.
4. Allow all the fluid to drain.
5. Reattach the JIC plug to the end of the drain hose.
Replacing the Hydraulic Suction Filter/Strainer
1. Drain the hydraulic tank following the procedures
outlined in Section, ‘Draining the Tank’’
2. Locate the suction filter protruding from the suction
line’s tank flange located near the bottom of the
hydraulic tank. (E)
3. Remove the suction hose and its fittings from the
center of the strainer.
4. Unscrew the strainer from the hydraulic tank.
5. Examine the suction strainer.
6. If the strainer is clogged, clean it with an approved
cleaning solvent.
7. If the strainer is damaged, replace with an S-5
strainer.
8. Screw the cleaned or replacement strainer into the
tank.
9. Re-attach the hose and its fittings to the center of the
strainer.
Replacement the Hydraulic Return Filter
1. Locate the return filter. (C)
2. Unscrew the old canister from the filter head.
3. Fasten the replacement filter canister to the filter head
To Next Page
Loading...