Hy-Security HRG 220 ST, Руководство по установке и обслуживанию, Страница: 57 / 71

Installation and Maintenance Manual
51
General Maintenance
Operator Post
The Hy-Security Swing Gate Operator is designed to require a minimum amount of maintenance.
There is no lubrication required for any part of the operator, including the cam followers located at the
center of the operator. The cam followers are permanently lubricated at the factory.
Inspect the white UHMW plastic bearings at inside top & bottom of the 7" square post. If the gap between
the bearing and the 5-1/2" round post exceeds 3/8", replace the bearing.
Inspect the open and close operation of the gate for speed and travel. If adjustment is necessary, refer
to the information on adjustment of the flow control valve on page18.
The adjustment of the indexing arm may have to be altered to hold the gate in the correct position and
allow alignment of the locking pin with its receptacle. Adjustment is usually required only after the gate
has been hit by a vehicle or otherwise been damaged. To adjust, unbolt the tension where it attaches to
the gate and screw the adjuster, in or out as needed. See page17 for more information.
The most reliable operation occurs when the indexing arm is adjusted to slightly "over close" the gate.
The goal is to have the locking pin strike its receptacle firmly then the closing tension will aid in keeping
the locking pin aligned into the receptacle.
For assistance, contact your distributor.
Hydraulic System
Fluid Level:
Under normal conditions, hydraulic systems do not consume oil. Before adding any oil,
check the system thoroughly for leaks. Remove the bright metal plug in the tank, fill to plug level, then
replace plug. We recommend our
Uniflow hydraulic oil; part number H004 1.0 , which is sold in one-gallon
containers by our distributors. Automatic transmission fluid may be used, although its performance in
cold weather will be sluggish unless the operator is well heated.
Never use brake fluid. It will severely
damage the entire hydraulic system.
Look for leaks:
Occasionally there may be slight seeping at the fittings after some usage. Tightening of
the fittings will usually correct the problem. If the leaking persists, replace "O" rings, fittings or hoses, if
required. No further leaks should occur.
Oil Change:
A hydraulic system does not foul its oil, unlike a gas engine, so oil changes do not need to
be frequent. Oil breakdown caused by heat is the main concern. If the unit is subjected to high use,
especially in a warm climate, change the oil more frequently. In general, we recommend draining the
reservoir and replacing the oil at five-year intervals.
To change the hydraulic oil, remove the reservoir from the pump unit and completely, empty it. Wipe the
reservoir can clean and clean any debris from the pickup screen before re-assembling. Refill with new
Uniflow hydraulic oil (available from your distributor). To avoid overfilling, fill only through removable plug
near the top of the tank. Slowly pour the oil into the tank until the oil is within one inch of the filler port.
Replace the plug and wipe up any spilled oil. If any oil is allowed to remain, it will dry to a very sticky and
messy consistency.
Cold Weather:
1. Check that your reservoir is filled with our Uniflow high performance oil, which is rated to -40
°
F.
2. Ice can partly or totally jam gate operation. In severe weather inspect the gate for excessive build-
ups of snow and Ice.