(3) If the fault continues, replace the PRIORITY VALVE-G (1064GM) or PRIORITY VALVE-Y (3064GM) , (Ref. AMM TASK 29-11-33-000-001) (Ref. AMM TASK 29-11-33-400-001) or (Ref. AMM TASK 29-13-33-000-001) (Ref. AMM TASK 29-13-33-400-001).

 (4) If the fault continues, replace the PTU-G/Y (1088GM) (Ref. AMM TASK 29-23-41-000-001) and (Ref. AMM TASK 29-23-41-400-001).

 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞29-23-00∞∞∞∞∞∞∞∞∞∞Page 208
 May 01/05 CES

R **ON A/C 059-099, 102-149, 151-199, 201-299, 301-399, 401-499,
 B. If the difference of the system pressure between the Green and Yellow hydraulic systems was during run of both engines less than 200 psi:
 (1) Do a check of the clogging indicators of the FILTER-HP, G (1048GM) and FILTER-HP, Y (3048GM).

 - If necessary, replace the filter elements (Ref. AMM TASK 29-11-45-610-001) and (Ref. AMM TASK 29-13-45-610-001).

 (2) If the fault continues, replace the MANIFOLD,PTU (1113GM) or MANIFOLD,PTU (3015GM), (Ref. AMM TASK 29-11-15-000-001) (Ref. AMM TASK 29-11-15-400-001) or (Ref. AMM TASK 29-13-15-000-001) (Ref. AMM TASK 29-13-15-400-001).

 (3) If the fault continues, replace the PRIORITY VALVE-G (1064GM) or PRIORITY VALVE-Y (3064GM) , (Ref. AMM TASK 29-11-33-000-001) (Ref. AMM TASK 29-11-33-400-001) or (Ref. AMM TASK 29-13-33-000-001) (Ref. AMM TASK 29-13-33-400-001).

 (4) If the fault continues, replace the PTU-G/Y (1088GM) (Ref. AMM TASK 29-23-41-000-001) and (Ref. AMM TASK 29-23-41-400-001).

 **ON A/C ALL
 C. Do the test as given in para. 3. to make sure that the operation is correct.
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 Aug 01/05 CES

 TASK 29-23-00-810-803

 Low Pressure of the Power Transfer Unit (PTU) (Green to Yellow)
 1. Possible Causes
_______________

 - PTU-G/Y (1088GM)

 - SOL VALVE-PTU, Y (3012GL)

 - PRIORITY VALVE-Y (3064GM)

 - SOL VALVE-PTU, G (1012GL)

 - PRIORITY VALVE-G (1064GM)

 - CHECK VALVE-ENG 2 PUMP DELIVERY, Y (3050GM)

 - MANIFOLD,PTU (3015GM)

 - MANIFOLD,PTU (1113GM)

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------
REFERENCE DESIGNATION
 -------------------------------------------------------------------------------
R AMM 29-00-00-280-004 Check of the Internal Leakage of the Power Transfer
R Unit (PTU)
R AMM 29-10-00-220-001 Functional Check to Monitor Internal Leak Rate of
R Yellow and Green Hydraulic Systems AMM 29-11-15-000-001 Removal of the Power Transfer Unit (PTU) Manifold of the Green Hydraulic System AMM 29-11-15-400-001 Installation of the Power Transfer Unit (PTU) Manifold of the Green Hydraulic System AMM 29-11-33-000-001 Removal of the Priority Valve of the Green Hydraulic System (1064GM) AMM 29-11-33-400-001 Installation of the Priority Valve of the Green Hydraulic System (1064GM) AMM 29-13-15-000-001 Removal of the Power Transfer Unit (PTU) Manifold of the Yellow Hydraulic System AMM 29-13-15-400-001 Installation of the Power Transfer Unit (PTU) Manifold of the Yellow Hydraulic System AMM 29-13-33-000-001 Removal of the Priority Valve of the Yellow Hydraulic System (3064GM) AMM 29-13-33-400-001 Installation of the Priority Valve of the Yellow Hydraulic System (3064GM) AMM 29-13-36-000-001 Removal of the Engine 2 Yellow Hydraulic Pump Delivery Check Valve (3050GM). AMM 29-13-36-400-001 Installation of the Engine 2 Yellow Hydraulic Pump Delivery Check Valve (3050GM). AMM 29-23-00-710-003 Operational Check of PTU Yellow to Green AMM 29-23-41-000-001 Removal of the Green/Yellow Power Transfer Unit 1088GM AMM 29-23-41-400-001 Installation of the Green/Yellow Power Transfer Unit 1088GM
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 -------------------------------------------------------------------------------
REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 29-23-51-000-001 AMM 29-23-51-000-002 AMM 29-23-51-400-001 AMM 29-23-51-400-002  Removal of the Solenoid Valve 1012GL of the Power Transfer UnitRemoval of the Solenoid Valve 3012GL of the Power Transfer UnitInstallation of the Solenoid Valve 1012GL of the Power Transfer UnitInstallation of the Solenoid Valve 3012GL of the Power Transfer Unit
　
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