22-1522-15TX / TXH / TXB 180S - 400L (Rev. 4/23/07)TX / TXH / TXB 180S - 400L (Rev. 4/23/07)
ssteetee g sg s otot estoesto ed ated at t st s po t,po t, ep acep acee
the orbitrol.the orbitrol.
Troubleshooting Common Brake Problems.Troubleshooting Common Brake Problems.
Should brake pressure drop below 1,500 psi (104Should brake pressure drop below 1,500 psi (104
bar), a warning will be generated by the TICS.bar), a warning will be generated by the TICS.
Should the brake pressure continue to drop atShould the brake pressure continue to drop at
1,000 psi (69 bar), the parking brake will automati-1,000 psi (69 bar), the parking brake will automati-
cally applycally apply. . The parking The parking brake is brake is spring-appliedspring-applied
and hydraulic pressure to release (1,250 psi / 86and hydraulic pressure to release (1,250 psi / 86
bar minimum).bar minimum).
1.1. StStarart t ththe te truruckck..
2.2. The BThe Brakrake pree pressussure care can be obn be obtaitained fned from trom thehe
TICS module display (refer to the Trans-TICS module display (refer to the Trans-
mission Measure Group list illustration ofmission Measure Group list illustration of TICSTICS
inin Section 6Section 6).).
3.3. TTo enso ensure ture the prehe pressure ssure transdtransducerucer, w, whichhich
communicates brake pressure to the TICS, iscommunicates brake pressure to the TICS, is
5.5. ShuShut the trt the truck ouck off anff and turn td turn the ignhe ignitiition swon switcitchh
to it’s to it’s ignition position (1st ignition position (1st click). click). Continue toContinue to
monitor the brake pressure from the TICSmonitor the brake pressure from the TICS
module module displaydisplay..
Death or serious injury couldDeath or serious injury could
result from removal of a component underresult from removal of a component under
pressure. pressure. The brake The brake circuits storcircuits store pressuree pressure
after the enafter the engine has gine has been shut been shut down. down. AlwaysAlways
bleed the brake pressure to 0 psi prior tobleed the brake pressure to 0 psi prior to
removal of any brake component.removal of any brake component.
6.6. Shut Shut off off the the engineengine. . TuTurn rn the the ignitiignition on switcswitch th too
it’s ignition it’s ignition position (1st position (1st click). click). Bleed the brakeBleed the brake
pressure to zero by repeatedly depressing onepressure to zero by repeatedly depressing one
of the service brake pedals and monitoring theof the service brake pedals and monitoring the
brake pressure at the TICS module display.brake pressure at the TICS module display.
PPrroobblleemm CCaauussee CCoorrrreeccttiioonn
1.1. No No LiLift ft / / LoLowewer /r /
Tilt in / Tilt outTilt in / Tilt out
continuedcontinued
1.1. OpeOperatrator ior is nos not st seateated ied in thn the ope oper-er-
ators seat.ators seat.
2.2. LoLow piw pilolot prt presessusurere..
3.3. No hNo hydydraraululic fic fluluid fid floloww..
4.4. IncIncorrorrect ect prepressussure sere settitting of ng of thethe
main relief (RV1).main relief (RV1).
5.5. DefDefectective ive maimain rn relielief ef (R(RV1)V1)..
6.6. IncIncorrorrect ect prepressussure sre settetting oing of thf thee
accessory valve’s main relief.accessory valve’s main relief.
7.7. DefDefectective aive acceccessossory vary valvelve’s ’s maimainn
relief.relief.
8.8. DefDefectective ive LogLogic Cic Contontrol rol (LC(LC3).3).
9.9. DeDefefectctivive me maiain pn pumump.p.
1.1. RetReturn urn to to the the operoperatoators rs seaseat.t.
2.2. IsIsololatate e and and reprepaiairr..
3.3. IsIsololatate e and and reprepaiairr..
44.. AAddjjuusstt..
55.. RReeppllaaccee..
66.. AAddjjuusstt..
77.. RReeppllaaccee..
88.. RReeppllaaccee..
99.. RReeppllaaccee..
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