TX / TXH / TXB 180S - 400L (Rev. 4/23/07)TX / TXH / TXB 180S - 400L (Rev. 4/23/07)
22-1422-14
6.6. TurTurn thn the set e set screw screw clockclockwise wise to ito increasncrease the thee
pressure or counterclockwise to decrease thepressure or counterclockwise to decrease the
pressure.pressure.
7.7. WheWhen the spn the speciecifiefied presd pressursure has bee has been achen achei-ei-
ved, tighten the jam nut.ved, tighten the jam nut.
8.8. TurTurn the n the set sset screw crew of tof the maihe main reln relief in ief in the inthe inletlet
section of the accessory valve 1/4 turn coun-section of the accessory valve 1/4 turn coun-
terclockwise to return this relief to it’s correctterclockwise to return this relief to it’s correct
setting (reverse of procedure 4.).setting (reverse of procedure 4.).
9.9. RemRemove tove the prehe pressussure gaure gauge insge instaltalled in pled in procroce-e-
dure 1.dure 1.
Tilt OutTilt Out (Illustration 22-20)(Illustration 22-20)
1.1. InsInstaltall an opel an operatrate pree pressussure gare gauge inuge into thto thee
pressure check at port (HPC1).pressure check at port (HPC1).
2.2. Start Start the the trucktruck. . TiTilt lt out out and and dead-hdead-head ead the the tilttilt
cylinders.cylinders.
3.3. ObsObserverve te the he prespressursure ge gaugauge. e. The The gaugauge ige indindi--
cations should be as specified in thecations should be as specified in the
HYDRAULIC PRESSURE SETTINGSHYDRAULIC PRESSURE SETTINGSchart inchart in
thethe AppendicesAppendices. . If not, If not, perform the perform the remainingremaining
procedures to set the pressure of the portprocedures to set the pressure of the port
relief located on the A port side of the tiltrelief located on the A port side of the tilt
valve.valve.
4.4. TTurn turn the ehe enginngine ofe off. f. LooLoosen sen the the jam jam nut nut onon
the port relief located on the A port side of thethe port relief located on the A port side of the
tilt valve.tilt valve.
5.5. TurTurn thn the set e set screw screw clockclockwise wise to ito increasncrease the thee
pressure or counterclockwise to decrease thepressure or counterclockwise to decrease the
pressure.pressure.
6.6. WheWhen thn the spe speciecifiefied pred pressussure hare has bes beenen
achieved, tighten the jam nut.achieved, tighten the jam nut.
Accessory Main ReliefAccessory Main Relief (Illustration 22-20)(Illustration 22-20)
The port reliefs of the side shift and fork position-The port reliefs of the side shift and fork position-
ers work sections are factory set and non-adjust-ers work sections are factory set and non-adjust-
able.able.
1.1. InsInstaltall an opel an operatrate pree pressussure gare gauge inuge into thto thee
pressure check at port (HPC2).pressure check at port (HPC2).
the port relief located on the A port side of thethe port relief located on the A port side of the
inlet section of the accessory valve.inlet section of the accessory valve.
5.5. TuTurn thrn the set e set screw screw clockclockwise wise to ito increasncrease the thee
pressure or counterclockwise to decrease thepressure or counterclockwise to decrease the
pressure.pressure.
6.6. WheWhen thn the spe speciecifiefied pred pressussure hare has bes beenen
achieved, tighten the jam nut.achieved, tighten the jam nut.
Side Shift and Fork Positioners Port ReliefsSide Shift and Fork Positioners Port Reliefs
(Illustration 22-20)(Illustration 22-20).. The port The port reliefs of reliefs of the sidethe side
shift and fork positioners work sections are factoryshift and fork positioners work sections are factory
set and non-adjustable.set and non-adjustable.
Hydraulic System TroubleshootingHydraulic System Troubleshooting
Troubleshooting Common Steering ProblemsTroubleshooting Common Steering Problems
(Illustration 22-20)(Illustration 22-20)
1.1. InsInstaltall a gl a gaugauge in e in porport Ht HPC3PC3. . StaStart rt the the engienginene
and dead-head the steer cylinder in bothand dead-head the steer cylinder in both
directions. directions. Refer Refer to to thethe HYDRAULIC PRES-HYDRAULIC PRES-
SURE SETTINGSSURE SETTINGSchart in thechart in the AppendicesAppendicesforfor
the steer the steer pressure. pressure. The pressThe pressure shouldure should
reach the specified value while dead-headedreach the specified value while dead-headed
in either direction.in either direction.
2.2. TTurn thurn the stee steeriering wheng wheel in one del in one direirectiction unton untilil
the steer the steer cylinder dead-heads. cylinder dead-heads. The steeringThe steering
wheel should come wheel should come to a near to a near stop. stop. Repeat inRepeat in
the other directhe other direction. tion. If the If the wheel does wheel does not stopnot stop
in one or the other direction while dead-head-in one or the other direction while dead-head-
ing, the most likely component failure will being, the most likely component failure will be
the steer the steer cylinder packing. cylinder packing. Repack the Repack the steersteer
cylinder.cylinder.
3.3. InsInstaltall a presl a pressursure gauge gauge (5,e (5,000 ps000 psi / 345 bai / 345 bar)r)
into pressure check (HPC3) of the manifold.into pressure check (HPC3) of the manifold.
Tilt Tilt back and back and dead–head the tilt dead–head the tilt cylinders. cylinders. AtAt
high and low engine rpm, observe the pres-high and low engine rpm, observe the pres-
sure sure gauge. gauge. Refer Refer toto HYDRAULIC PRES-HYDRAULIC PRES-
SURE SETTINGSSURE SETTINGSchart in thechart in the AppendicesAppendicesforfor
specified pressure. specified pressure. This check This check indicates thatindicates that
the main pump and the main relief (RV1) isthe main pump and the main relief (RV1) is
operating operating correctlycorrectly..
4.4. WitWith the tilh the tilt cylt cylindeinders dears dead-hd-headeaded baced back,k,
attempt to steer tattempt to steer the machine. he machine. If able to steerIf able to steer,,
the most probable failed component is logicthe most probable failed component is logic
control control (LC3). (LC3). Replace Replace LC3.LC3.
5.5. If reIf replaplacemcement oent of LC3 df LC3 did noid not cort correcrect the pt the probrob--
lem, replace logic control (LC2).lem, replace logic control (LC2).
6.6. If reIf replaplacemcement oent of LC2 df LC2 did noid not cort correcrect the pt the probrob--
lem, replace Steer Relief (RV2).lem, replace Steer Relief (RV2).
7.7. If sIf steerinteering is g is not rnot restorestored at ed at this this point, point, replacreplacee
not faulty, install a 3,000 psi (207 bar) pres-not faulty, install a 3,000 psi (207 bar) pres-
sure gauge into sure gauge into port HPC5. port HPC5. The gauge indica-The gauge indica-
tions should be approximately what is dis-tions should be approximately what is dis-
played by the TICS module.played by the TICS module.
4.4. If thIf the prese pressursure indie indicatcated is pued is pulsalsatinting, thg, thenen
there is a leak there is a leak in the brake circuitin the brake circuit. . The pulsa-The pulsa-
tion of pressure is caused by the unloadertion of pressure is caused by the unloader
valve (UNL1) and the logic control (LC1) cycl-valve (UNL1) and the logic control (LC1) cycl-
ing on and off, charging the brake circuit.ing on and off, charging the brake circuit.
55 ShuShut the trt the truck ouck off anff and turn td turn the ignhe ignitiition swon switcitchh
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