90 D0559 Rev. A SlideDriver/SlideDriver 50VF Series www.hysecurity.com
HYdraulIC sYstem maIntenanCe
Fluid Level: Under normal conditions, hydraulic systems do not consume uid. Check the system thoroughly for
leaks, before adding any uid. If uid needs to be added:
1. Remove the metal plug from the tank.
2. Use HySecurity Uniow hydraulic uid; part number
MX000970. Gallon sold by our distributors.
3. Fill to within ½ inch of the plug level, and then replace plug.
NOTICE: Never use brake uid. It will severely damage the hydraulic
system. Use of any uid other than uid recommended by HySecurity
may void the operator warranty.
Look for leaks: Occasionally there may be slight seeping at the
ttings after some usage. Tightening of the ttings usually corrects
the problem. If leaking persists, replace “O” rings, ttings or hoses,
if required. No further leaks should occur.
To Change Fluid: Unlike a gas engine, the uid inside a hydraulic
system does not foul, so uid changes do not need to occur often.
HySecurity recommends draining the reservoir and replacing the
uid at ve-year intervals. Fluid breakdown caused by heat is the
main concern. If the unit is subjected to high use, or you are using
the HySecurity biodegradable uid option (especially in a wgate climate), change
the uid more frequently.
To change the hydraulic uid,
1. Remove the reservoir from the pump pack.
2. Completely empty it.
3. Wipe the reservoir clean and clean the derby screen.
4. Re-assemble the pump unit and rell it with new Uniow hydraulic uid.
5. To avoid overlling, slowly pour the uid through the ller port near the
reservoir’s top until the uid is within one inch of the port’s opening.
6. Replace the plug and wipe up any spilled uid. Spilled uid dries to a
sticky and messy consistency.
Cold Weather Issues:
1. Check that your reservoir is lled with our Uniow high performance uid.
2. Excessive ice buildup can partially or totally jam gate operation. Operate the gate manually, while clearing
the ice buildup.
3. If the operator is located in an area of extreme snow conditions, regular maintenance to dig the operator
out may be required. A heater option may help.
NOTE: A biodegradable uid option does exist, but it does not have the same uid viscosity at extremely low
temperatures. Uniow uid temperature rating is between -40°F and 158°F (-40°C and 70°C). The biodegradable
uid has a temperature rating between -10°F and 158°F (-23°C and 70°C).
Pump
pack
Quick
Disconnect
Brake Valves
Solenoid
Locknut
The Pressure Relief
Valve is located
behind the
motor on the
pump pack or
soft start
manifold.
Motor
Pump
pack
Adjustment Screw
SlideDriver 15, 40, 50VF
Brake Valves
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