FOLDING TOP 21 35 d Actuate switch to down position If If fluid is low add Delco till Hydraulic tester does not light there is an open or short Fluid GM Hydraulic Brake Fluid Super 4411 or Ciwuit in Wi its equivalent to bring to specified level See Filling of Hydro Lectric Reservoir e Disconnect red switch to motor wire from motor lead f Reinstall filler plug and pump and motor shield f Connect light tester to red switch to motor wire terminal 2 Checking Operation of Lift Cylinders Actuate switch to up position If tester a Remove rear seat cushion and folding top does not light there is an open or short circuit compartment side panel assemblies in wire b Operate folding top control switch and ob 4 Checking the Motor Unit serve lift cylinders during up and down cycles for these conditions If a light tester indicates current at the motor lead terminals of the switch to motor wires but 1 if movement of cylinder is uncoordi motor unit does not operate from switch a final nat qi or sluggish when the motor is actuated check of the motor unit can be made follows ohggk llyrlmmygy hggeg rpm mnt yy and pump to cylinder for kinks a Check connection of motor ground wire to body metal See 2158 2 If one cylinder rod moves slower than the other cylinder having slower moving rod b Connect a 12 iumper wire from battery is detective and shguld be ye p1 m d positive pole to motor lead terminal that con nects to green switch to motor wire The motor 3 If both cylinder rods move slowly or do should operate to lower top not move at all check the pressure of the pump See Checking the Pressure of the c Connect jumper wire to motor lead termi pnmp nal that connects to red switch to motor wire The motor should operate to raise top NOTE To insure proper operation of the lift cylinders the top lift cylinder rods should be d If motor fails to operate on either or both qlgaugd gud nbl jgy g at Igggt tyvjgg A yew TO of these checks it should be repaired or perform these operations raise top to up 1 PIH I position and wipe exposed portion of each top lift cylinder piston rod with a cloth dampened c If motor operates with jumper wire but will with brake fluid to remove any oxidation andw or not operate from switch to motor wires the accumulated grime With another clean cloth WOUIIIQ HWY he I 1lU5 I IW Iu I lU i t YF apply a lightrfilm of brake fluid to the piston sulting from damaged wiring or poor connections rods to act as a lu oi icant HYDRAULIC CHECKING PROCEDURE CAUTION Exercise care so that brake fluid Fquureq in the hvdrlmhc svgtgm mu be cruised does not come in contact with any painted or j trimmed parts of the body by lack ol hydraulic fluid leaks in hydraulic sys tem obstructions or kinks in hydraulic hoses or 3 Chgckmg P1 SSm at the Pump faulty operation of a cylinder or pump 1 Chgck Hvdmuhp Fluid Level in Rpsprvoir a Rcmove motor and pump assembly from V rear compartment n OPETMC mp te raised pOSimm b Install plug in one port and pressure gauge in port to be checked See Fig 2167 b At rear compartment remove pump and m i tOr Shield c Actuate motor with applied terminal volt V V V V age within range of 9 5 volts to 11 0 volts Pres c Place absorbent rags below reservoir at V V V V V V filler plug Sure gage should show a pressure between 340 psi and 380 psi d With a straight bladed screwdriver re V V V V V 9 Hum plug Fluid IEVEI Shlmm be x uhm d Check pressure in other port 1 I4 inch of lower edge of filler plug hole NOTE A difference in pressure readings may