160071, OPR, HYSTER, Hyster2, SRM

//-->.pos {position:absolute; z-index: 0; left: 0px; top: 0px;}INTRODUCTIONGENERALThis section has the description and the instructions fordisassembly and assembly of the steering axle.sembly to move in the frame mounts when the lift trucktravels over rough surfaces.The ends of the piston rod extend from both ends of thesteering cylinder shell. A single piston seal is in the cen-ter of the rod. Oil pressure on one side of the pistonmoves the piston in the bore. The piston pushes an equalamount of oil from the opposite side of the cylinder.A relief valve in the steering system controls the oilpressure when the piston reaches the end of the cylinder.The tie rods that connect the spindle arms to the cylinderrod are not adjustable.DESCRIPTION (See FIGURE 1.)The steering axle assembly includes an axle frame, asteering cylinder, and two spindle and hub assemblies.The axle assembly is connected to the lift truck framewith two stub shafts. The stub shafts permit the axle as-H7.00–12.50H (H150–275H),H13.50–16.00B (H300–350B),P7.00–9.00B (P150–200B) SHOWN,OTHERS SIMILAR1 23H360–620B,H700–800A,H16.00–30.00C (H360–650C),H17.00–32.00C (H370–700C),H36.00–48.00C (H700–1050C)H20.00–32.00F (H440–700F/FS)6H7.00–12.50H(H150–275H),H13.50–16.00B(H300–350B),P7.00–9.00B(P150–200B)5467435648291. SHOULDER2. O–RING3. SPACER4. SHIM5. BUSHING106. STUB SHAFT7. AXLE8. SPINDLE3582059. TIE ROD10. STEERING CYLINDERFIGURE 1. STEERING AXLE ASSEMBLY1Each spindle turns on two tapered roller bearings. Thebearings are adjusted by shims that are held in positionby a bearing cap. Each hub and wheel assembly alsoturns on two tapered roller bearings. The grease sealsprotect the bearings from dirt and water. The wearsleeves protect the hub from wear caused by the seals.1. Weight of a lift truck at the steering axle:H9.00H (H200H) – 12 000 kg (26000 lb)H620B – 17 000 kg (35000 lb)H800A – 20 400 kg (45000 lb)H48.00C (H1050C) – 26 190 kg (57750 lb)H32.00F (H700F/F)– 21 700 kg (47850 lb)2. Weight of a steering axle without wheels:H620B – 1 800 kg (3900 lb)H48.00C (H1050C) – 1910 kg (4210 lb)H32.00F (H700F)– 1910 kg (4210 lb)3. Weight of a steering cylinder:H800A – 210 kg (450 lb)H48.00C (H1050C) – 240 kg (475 lb)H32.00F (H700F)– 240 kg (475 lb)NOTE:The wheels, hubs, bearings, spindles, cylindersand tie rods can be removed with the axle in the lift tuck.WARNINGThe parts and assemblies handled in this section arevery heavy. Make sure that the lifting devices usedduring the repairs can lift the weight. Make sure thelift truck is in a position of stability before making re-pairs.The following examples are given to help you make anestimate of the weight that will be lifted.REPAIRSSTEERING AXLEWARNINGPut the lift truck on blocks. Follow the proceduresfor raising the lift truck in the OPERATING MAN-UAL or Periodic Maintenance section for this lifttruck. The surface must be solid, even, and level.Make sure that any blocks used to support the lifttruck are solid, one piece units. Make sure the liftingdevices used during repairs can lift the weight of theparts.RemovalWhen removing the axle, disconnect the hydraulic linesand install caps on the cylinder fittings. The caps willprevent the cylinder rod from moving as the axle is re-moved from under the lift truck. Put a lifting device un-der the axle. Remove the caps holding the stub shafts tothe frame. Lower the axle from the frame and move theaxle from the lift truck.InstallationWhen installing the axle, make sure the spacer, shimsand bushing are in the correct position. Lubricate thebushings and stub shafts with multi–purpose grease.Raise the axle into the frame mounts. Install the stubshaft caps. Check the clearance between the shims and2the mounts. Add or subtract shims as necessary to getzero clearance. Tighten the capscrews holding the capsto the frame.OnH7.00–12.50H (H150–275H), H13.50–16.00B(H300–350B), P7.00–9.00B (P150–200B) units,tighten the capscrews to 380 Nm (280 lbf ft).OnH360–620B, H700–800A,(H700–920B),H17.00–48.00CH20.00–32.00F(H440–700F/FS)H36.00–44.00B(H360–1050C),units,tightencapscrews to 660 Nm (485 lbf ft).STEERING CYLINDER (See FIGURE 2.)RemovalThe steering cylinder can be removed with the axle inthe lift truck. Disconnect the hydraulic lines and putcaps on the fittings. Disconnect the tie rods at the cylin-der rod ends. For models H360–620B, H700–800A, putblocks under the cylinder so that the cylinder does notfall when the capscrews are removed. Remove thecapscrews that hold the cylinder to the axle frame. Re-move the cylinder from the lift truck.NOTE:Early trucks had cylinders mounted to the top ofthe axle. Others mount either to the front or bottom ofthe axle. Blocks are not required under the cylinder.1269633H7.00–12.50H (H150–275H)H13.50–16.00B (H300–350B),P7.00–8.00B (P150–200B) SHOWNH360–620B, H16.00–30.00C (H360–650C)H36.00–44.00B (H700–920B) SHOWN9101187641.2.3.4.5.5END PLUGROD WIPERSQUARE RING SEALPISTON SEALROD SEAL5431210961121.2.3.4.END PLUGROD WIPERROD SEALROD5.6.7.8.RETAINERPISTONPISTON SEALO–RING9.10.11.12.PISTON RINGO–RINGBACK–UP RINGSET SCREWH17.00–32.00C (H370–700C) SHOWNH36.00–48.00C (H800–1050C)4321567 38 10219109611. ROD WIPER2. ROD SEAL3. END CAP4. RETAINER ROD (4)5. CYLINDER TUBE6. SQUARE RING7.8.9.10.SEAL RINGPISTON RINGRODNUT (8)FIGURE 2. STEERING CYLINDER3Inspection1. Inspect the piston rod for grooves or damage. Removesmall scratches with emery cloth.2. Inspect the brackets on the cylinder for cracks.Assembly1. Repair the cylinder as necessary using new seals andO–rings. Lubricate the parts with hydraulic oil duringassembly. Make sure that the square ring seal is underthe piston seal ring.2. Tighten each cylinder end plug to the followingtorque values:H7.00–12.50H(H150–275H), H13.50–16.00B(H300–350B), P7.00–9.00B (P150–200B)410–475 Nm (300–350 lbf ft)H360–620B , H16.00–30.00C (H360–650C),H17.00–32.00C (H370–700C)815–950 Nm (600–700 lbf ft)H700–800A, H36.00–44.00B (H700–920B)1220–1360 Nm (900–1000 lbf ft)3. On H36.00–48.00C (H800–1050C),H20.00–32.00F(H440–700F/FS),H360–650C and on later modelH17.00–32.00C (H370–700C) lift trucks, the steeringcylinders have end caps that are fastened at each end ofthe cylinder by four retainer rods and nuts. Tighten thenuts evenly to 320 Nm (236 lbf ft)InstallationH7.00–12.50H(H300–350B),H700–800A:(H150–275H),H13.50–16.00BP7.00–9.00B (P150–200B) and2. Install the seals on the tie rod bearings (if required).Install the pivot pins and anchor pins. If the tie rods havegrease fittings, make sure the grease fittings are towardthe counterweight. Do not damage the bearing sealswhen installing tie rods.H360–620B:Install the steering cylinder as follows:1. Install the hydraulic fittings on the cylinder. Put thecylinder in the correct position on the axle frame. Installthe capscrews for the bracket on one end of the cylinder.Tighten the capscrews to 1085 Nm (800 lbf ft). Installthe capscrews for the bracket on the other end of the cyl-inder. Do not tighten these capscrews.2. Measure the clearance between the axle frame and thebracket that is not tight. Install shims between the axleframe and bracket so that there is zero clearance.Tighten the capscrews to 1085 Nm (800 lbf ft).H16.00–30.00C (H360– 650C),H20.00–32.00F (H440–700F/FS),H36.00–44.00B (H700–920B):Install the steering cylinder as follows:1. Install the hydraulic fittings on the cylinder. Put thecylinder in the correct position on the axle frame. Checkfor clearance between any of the brackets on the cylin-der and the axle frame. If a bracket has clearance, installthe capscrews in the opposite bracket. Tighten thecapscrews to approximately 270 Nm (200 lbf ft).2. Install shims between the axle frame and bracket sothat there is zero clearance. Install the capscrews.Tighten all capscrews to 1085–1220 Nm (800–900 lbfft).H36.00–48.00C (H800–1050C),H20.00–32.00F (H440–700F/FS),H17.00–32.00C (H370–700C)and on later H16.00–30.00C (H360–650C) models:Install the steering cylinder as follows:1. Install the hydraulic fittings on the cylinder. Install thecylinder in the axle frame. Tighten the cap–screws thathold the cylinder to the axle frame as follows:H7.00–12.50H (H150–275H), H13.50–16.00B(H300–350B), P7.00–9.00B (P150–200B)625 Nm (460 lbf ft),H700–800A1900–2035 Nm (1400 to 1500 lbf ft).Install the steering cylinder as follows:1. Install the hydraulic fittings on the cylinder. Loosenthe nuts at one end of the retainer rods one turn. Put thecylinder in the correct position on the axle frame.42. Add shims between the end caps and the axle frame asrequired to allow the cylinder to have a flat mountingsurface. Install the capscrews for the end caps and tight-en by hand. Tighten the nuts on the retainer rods to 320Nm (235 lbf ft).3. Tighten the capscrews for the end caps evenly to 1085to 1220 Nm (800 to 900 lbf ft).WARNINGCleaning solvents can be flammable and toxic andcan cause skin irritation. When using cleaning sol-vents, always follow the solvent manufacturer’s rec-ommended safety procedures.Clean all parts with petroleum solvent. Make sure thebearings are clean. Make sure all solvent has evaporatedfrom inside the bearing cones before filling them withgrease.InstallationLubricate the two hub bearings with multi–purposegrease. Install the seal and the inner bearing. Install theouter hub bearing, washer and nut. Tighten the nut to200 Nm (150 lbf ft) while rotating the hub. Loosen thenut until the hub rotates freely. Tighten the nut to 35 Nm(25 lbf ft). Lock the nut in position with a cotter pin at thefirst alignment slot that occurs at approximately orabove 35 Nm (25 lbf ft).HUBS,H7.00–12.50H (H150–275H),H13.50–16.00B (H300–350B), P7.00–9.00B(P150–200B) (See FIGURE 3.)RemovalRemove the wheels to service the hubs. Remove thegrease cap in the hub for access to the bearings. Removethe outer bearing assembly. Remove the hub. If the bear-ings or the seals are replaced, use a brass drift to removethe inner bearing assembly from the hub. Check fordamage or wear on the bearings.1.2.3.4.5.6.7.PINSEALTIE RODBEARINGWASHERNUTSPINDLE8.9.10.11.12.13BEARING CAPSHIMSAXLESTEERING CYLINDERWHEELHUB11104212456137132244581998H7.00–12.50H (H150–275H)H13.50–16.00B (H300–350B)P7.00–9.00B (P150–200B)FIGURE 3. SPINDLE AND HUB5

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