P BRAKES be either a defective master cylinder or the use of bubbles cease to appear at the end of the bleeder low grade brake fluid which has expanded because hose close the bleeder valve and remove the hose of heat Use standard duty brake fluid conforming After the bleeding operation at each wheel cylinder to SAEJ1703 specification has been completed fill the master cylinder reser voir and replace the filler plug P 7 Bleeding Brakes Do not re use the liquid whichlhas been removed The hydraulic brake system must be bled whenever gona tga gcs through the blccdmg process because a fluid line has been disconnected or air gets into O ani u es and duitf the system A leak in the system may sometimes be indicated by the presence of a spongy brake P 8 Brake H s s pedal Air trapped in the system is compressible a Hydraulic lines tubing and hose are the means and does not permit the pressure applied to the of transmitting fluid under pressure between the brake pedal to be transmitted solidly through to master cylinder and the wheel cylinders the brakcs Th System must bs absolutely free Note On some vehicles a proportioning valve is from air at all times When bleeding brakes bleed located in the rear brake line along the inside left at that wheel with the longest line from the master frame Side rail The Valve is not serviceable and x VV E gy must be replaced as an assembly 3 r Should replacement be necessary make certain the r V V V V 5 r r i valve is properly positioned with the centerline of i a x A e 2 n i i 0 i the hex plug in the bottom of the valve in the i i A r i V vertical PO itiO R f Y tO Fig P 1 The hoses are the flexible links between the wheels V VV V X 5 or axles and the frame or body The hoses must if V VV V n withstand the fluid pressures without expansion v l l V and must be free to flex during spring deflection U ni and wheel turns without causing damage to the is i hose fe M a el f j V V V b Hydraulic lines are subject to damage and r i c X deterioration Hoses should be inspected for cuts V a V l i is chafing cracks twists and loose rame supports ii a is Hydraulic tubing Should be inspected for signs gf A ll i f leakage due to faulty flares or loose connections f V3 iin restrictions due to dents or corrosion and wear Jii i i i i V A due to friction against other metal parts Always V use correct type and size of wrench on fittings i V Avoid damage to female fittings by supporting fit ir V is V A ting with tube nut during removal of assembly c On fittings where gaskets are used always use f ket Copper gaskets take a set and may ti4 H s gas is i not form a good seal if reused i J d When replacing hydraulic brake hose attach A hose to wheel cylinder and securely tighten hose s V V ther attach opposite end to frame fitting Of tubing G 5rB E NG BRAKES Eisid S5Sbl ai i YhE S S2 I2bL ci E yfZ 2 ing or u ing o 0 e l Bleeder Screw wrench while attaching tubing to hose If hose end clip is used make certain clip is assembled properly cylinder first the next longest second etc During Check for interference during spring degection Or the bleeding operation the master lcylmdler rebound and during mnt wheel tm S be kept at least A fun Of hydraulic bra C ui e Check for any possible contact between front To bleed the brakes first carefully clean all dirt brake hose and inner sidewall Of tire when the front mm around th mastar Cylmdef auar plug af wheels are in maximum turn position Check for bleeder tank ls uscd follow the manufacturers m sufficient but not excessive length of hose between structions Remove the filler plug and fill the master the clamp and the Wheels by turning the Wheels Ci lmlaag to the lower adic ff gmcr algal Cgaag OH from one extreme turn position to the other al b ee er connections a a our w ee cy in ers t Attach bleeder hose and fixture to right rear wheel Lgtgllgiiktxattggagigi gzgofgg llgiigg agggccosrgigrv cylinder bleeder screw and place end of tube in a H t Conditions glass jar and submerged in brake fluid Open the a Opera mg g e I legv 1lgre one half to three quarters of a turn P 9 Brake Pedal Adjustment Depress the foot pedal allowing it to return very There should always be at least 12 7 mm slowly Continue this pumping action to force the free pedal travel before the push rod engages the fluid through the line and out of the bleeder hose master cylinder piston I which carries with it any air in the system When This adjustment is accomplished by shortening or 326