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Precautions for use:Precautions for use:
In the event of oil leakage from the cylinder body, check and replace the seal rings (12,14,In the event of oil leakage from the cylinder body, check and replace the seal rings (12,14,
16). Also check the guide sleeve and 16). Also check the guide sleeve and cylinder body for damage.cylinder body for damage.
Periodically check the bearings (10,19) and their seal rings (9,20), and replace promptly ifPeriodically check the bearings (10,19) and their seal rings (9,20), and replace promptly if
damaged. Also change grease on a regular basis.damaged. Also change grease on a regular basis.
Periodically check the bearings (26, 28), and their seal ring (25), and replace promptly ifPeriodically check the bearings (26, 28), and their seal ring (25), and replace promptly if
damaged. Also change grease on a regular basis;damaged. Also change grease on a regular basis;
Adjusting the Adjusting the preload of preload of the sthe steered wheel teered wheel hub hub bearingbearings: s: remove the remove the counterweigcounterweight ht and itsand its
cover panel, then jack up the rear of the frame with an automotive jack so that the wheel iscover panel, then jack up the rear of the frame with an automotive jack so that the wheel is
off the ground. Tighten nut (3) until the steered wheel hub cannot be moved by hand, thenoff the ground. Tighten nut (3) until the steered wheel hub cannot be moved by hand, then
rotate it 1/6 to rotate it 1/6 to 1/4 turn in 1/4 turn in the opposite direction.the opposite direction.
Adjusting the preload of the support bearings (10,19): Adjusting the preload of the support bearings (10,19): Remove counterweigRemove counterweight and its coverht and its cover
panel, then jack up the rear of the frame. Tighten nut (8) until the steering spindle cannot bepanel, then jack up the rear of the frame. Tighten nut (8) until the steering spindle cannot be
moved by hand, then rotate nut (8) 1/6 moved by hand, then rotate nut (8) 1/6 to 1/4 turn in to 1/4 turn in the opposite direction.the opposite direction.
Problem Problem Cause Cause Analysis Analysis RemedyRemedy
Steering wheel will not turnSteering wheel will not turn
Pump Pump damaged damaged or or faulty faulty ReplaceReplace
Clogged or damaged priority valveClogged or damaged priority valve Flush orFlush or
replacereplace
Hose or connector damaged or pipe blockedHose or connector damaged or pipe blocked Replace orReplace or
flushflush
Steering is hardSteering is hard
Diverter valve pressure too lowDiverter valve pressure too low AdjustAdjust
pressurepressure
Air in the oil line Air in the oil line Bleed off airBleed off air
Steering gear fails to centre, positioning springSteering gear fails to centre, positioning spring
broken or weakbroken or weak
ReplaceReplace
springspring
Excessive leakage inside steering cylinderExcessive leakage inside steering cylinder Check pistonCheck piston
sealseal
Abnormal noiseAbnormal noise
Low Low oil oil tank tank level level Add Add oiloil
Damaged Damaged steering steering gear gear shaft shaft rack rack ReplaceReplace
Damaged Damaged wheel wheel bearing bearing or or support support bearing bearing ReplaceReplace
Inadequate Inadequate lubrication lubrication Add Add greasegrease
Clogged suction pipe or oil filterClogged suction pipe or oil filter Flush orFlush or
replacereplace
Oil leakOil leak
Defective steering cylinder seal ring or damagedDefective steering cylinder seal ring or damaged
pipe or connectorpipe or connector ReplaceReplace
Damaged wheel hub bearing or support bearing orDamaged wheel hub bearing or support bearing or
seal ringseal ring
Replace sealReplace seal
ringring
Steering angles of left andSteering angles of left and
right drive wheels (frontright drive wheels (front
wheels) do not matchwheels) do not match
Controller Controller parameters parameters incorrect incorrect AdjustAdjust
