SEAT Controls and Steering System Manual PDF - Service Guide (EN)

SECTION 4 CONTROLS Steering 4.1 Steering Control System Illustrations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pg. 4-2, 4-3 Neutral Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pg. 4-4, 4-6 Tracking Adjustment (Speed) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pg. 4-7 Control Lever Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pg. 4-8 Foot Pedals 4.2 Foot Pedal System Illustration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pg. 4-9 Angle Adjustment . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pg. 4-10 Pedal Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pg. 4-11 Hand Controls 4.3 Hand Control System Illustration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pg. 4-12 Cable Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pg. 4-13 Angle Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pg. 4-14 Control Lever Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . pg. 4-15 4 Throttle 4.4 Throttle System Illustration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pg. 4-16 Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pg. 4-17 Throttle Rod Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pg. 4-18 Restraint Bar 4.5 Restraint Bar System Illustration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pg. 4-19 Gas Spring Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pg. 4-20 Restraint Bar Replacement . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pg. 4-21 Parking Brake 4.6 General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pg. 4-22 Trouble Shooting 4.7 Steering Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pg. 4-23 Foot Pedals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pg. 4-23 Hand Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pg. 4-23 Restraint Bar . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pg. 4-23 4-1

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STEERING 4.1 Control Levers 175 1 4 2 5 24 8 3 36 36 19 36 7 8 9 6 18 37 37 16 28 27 33 14 11 20 4 19 33 36 15 17 30 25 30 32 29 34 13 13 12 13 26 32 10 24 21 31 30 23 22 35 13 1 Handle, Ergonomic Plain Handle, Ergonomic w/Rocker Switch 2 Lever Base Welded Ass’y 3 Bolt, Hex. 4 Jam Nut, Locking 5 Clevis (Hand Control Loaders) 6 Cotter Pin (Hand Control Loaders) 7 Clevis Pin (Hand Control Loaders) 8 Flange Bushing 9 Tube, Handle Spacer 10 Control Lever, L.H. Control Lever, R.H. 11 Cable, Push-Pull (Hand control Loaders) 12 Rod End Ass’y (Hand Control Loaders) 13 Bolt, Hex 14 Bolt 15 Washer, Lock 16 Washer, Flat 17 Washer, Fender 18 Flange Bushing 19 Hydroback Ass’y 20 Bar, Pintle Linkage L.H.

21 Bar, Pintle Linkage R.H. 22 Bolt, Hex 23 Hex Nut, Nylok 24 Hydroback Mount 25 Bolt 26 Washer 27 Pintle Lever Ass’y 28 Bolt 29 Nut 30 Washer, Lock 31 Nut, Nylok 32 Rod End Ass’y, Female 33 Rod End Ass’y, Female 34 Nut, Nylok 35 Bolt, Ergonomic Handle (w/Hole) Bolt, Ergonomic Handle (No Hole) 36 Bolt, Hex 37 Washer C3227 4-2

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STEERING 4.1 Control levers 1700 1 4 2 24 36 8 3 9 36 36 18 8 28 19 12 14 16 12 27 33 27 19 36 15 17 30 34 25 34 30 32 10 4 13 26 29 13 20 13 24 32 30 6 21 31 23 5 22 7 11 35 13 5 C3300 1 Handle, Control 2 Lever Base Welded Ass’y 3 Bolt, Hex. 4 Jam Nut, Locking 5 Clevis 6 Cotter Pin 7 Clevis Pin 8 Flange Bushing 9 Tube, Handle Spacer 10 Control Lever, L.H. Control Lever, R.H. 11 Cable, Push-Pull 12 Washer 13 Bolt, Hex 14 Bolt 15 Washer, Lock 16 Washer, Flat 17 Washer, Fender 18 Flange Bushing 19 Hydroback Ass’y 20 Bar, Pintle Linkage L.H. 21 Bar, Pintle Linkage R.H.

22 Bolt, Hex 23 Hex Nut, Nylok 24 Hydroback Mount 25 Bolt 26 Washer 27 Pintle Lever Ass’y 28 Bolt 29 Nut 30 Washer, Lock 31 Nut, Nylok 32 Rod End Ass’y, Female 33 Rod End Ass’y, Female 34 Nut, Nylok 35 Bolt, Hex 36 Washer 4-3

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STEERING 4.1 Neutral Adjustment Remove mounting bolt IMPORTANT If you are unfamiliar with the control operations of the loader, read the Owner’s / Operator’s Manual beforehand. The steering levers are equipped with a spring centering device called a hydroback. The hydroback returns the steering lever to neutral position when the steering levers are not being operated. This feature automatically keeps the loader in neutral whenever the engine is started, or when the control levers are released.

If the loader creeps, or is not in neutral, when the engine is started or the steering lever is released from forward or reverse position, the hydroback device may need to be adjusted, repaired or replaced. 1 Raise the boom arms, engage the boom support pins and shut off the engine. Raise and block the loader securely off the ground. 2 Remove the seat and hydrostatic shield.(fig. C3557) Note the location of the hydroback. (fig. C3556) 3 Cycle the control lever while watching the hydroback action. The hydroback should return the lever to a neutral position. 4 Check the rod ends on each end of the hydroback. They must be free of any play. Replace the rod ends if any play or slack is noticed.

(fig. C3555) 5 If the control lever is able to move slightly without spring tension returning it to neutral, the hydroback needs adjusted. C3557 4 C3557 Hydrostatic shield Hydroback location WARNING Never work under the boom arms without the boom supports engaged. C3556 IMPORTANT Repairs or adjustment to the control lever system may change the loader neutral position. Make sure the loader is raised securely off the ground before restarting the engine. 2 jam nuts Hydroback assembly Jam nut Rod ends C3555 C3555 -4

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