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BENDIX TCH-001-007 User's Manual
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1. Technical Bulletin Bulletin No PRO 01 07 A Effective Date 6 15 80 Cancels PRO 01 07 dated 4 5 77 Page 1 of 3 Subject MACK TRUCK INSTALLATION OF POWER STEERING PUMPS ON TU FLO 500 501 AND 600 COMPRESSORS REF Mack Bulletin R47 Attached The attached Mack Service Bulletin No R47 dated 11 19 76 details and illustrates the various mounting configurations and interchangeability of the compressor mounted power steering pumps Please note that Mack uses two different sets of drive components to mount the pumps on the rear of Bendix compressors The drive components used depends on the compressor model The compressor and drive component combinations are as follows COMPRESSOR POWER STEERING PUMP POWER STEERING PUMP DRIVE HOUSING COUPLING HUB Mack Part No Mack Part No Tu Flo 501 756GB326 792GB219 Tu Flo 500 600 amp 700 756GB217 792GB17 Drive components are obtained through Mack parts outlets If it becomes necessary or desirable to change over from one model compressor to another it may also be necessary to change the drive components 1 e Changeover from T F 501 to T F 700 The following is a list of Bendix compressors which accept the rear mounted Mack power steering pumps COMPRESSOR BENDIX O E MACK FURNISH REMAN PIECE NO PIECE NO PC NO Tu Flo 500 284581 303GB 572 P5 284662 285204 303GB 4181 285205 Tu Flo 600 285100 303GB 4170R P3 285108 286220 303GB 4170R P4 286221 Tu Flo 501 2
2. and 600 arrangements are similar except that the TU FLO 500 and 600 coupling hub is attached with three screws instead of one Due to differences in port sizes between the two pumps some hose fitting changes will be required when making the change hose sizes remain the same Bo Trou OF BLOCK TU FLO 50 3 Q amp a G d kd OR a Haa oat Z Sba G C 3 REQ D TU FLO 500 AND 606 PIGUHE 1 PUMP MOUNTING ARRANGEMENT Continued ver Service Operations Allentown Pa ALLENTOWN CHASSIS a _ E Part Number saneemnune TU FLO 501 amp Midiand Ross TY FLO 500 and 600 Component o l Parker Hann Vickers _ E Vickers E a i z 756GH28 T 2GB17 issanee ___ 3 3AX1772 Drive Housing Mounting Hardware lt Furnished W Compressor Oil Seal Drive Housing to pump eiicetitecpt STM E ES AECC ErP ows Screw Pump i Mounting _ as 4AX3 4AX16 st 4AX3 oo _Lockwasher Pump Mounting Cl seal Drive Housing anamannan Bischarie Fittings ee aeee Bi E IIT T By pass Ebon T m mee e Byres Hose FR 1 e Pare Countiae an See _ Gasket Oil Seal Comp ito Drive Housing r63AN3127 3 5 Also o apply a coat of Silastic c T32RTV to pump mounting flange MACK WESTERN CHASSIS NOTE Pumps for under 12 000 capacity are to be utilized for units with G
3. 86004 303GB 575R P1 286544 or 286583 288982 303GB 580R P1 286544 or 286583 Tu Flo 700 289251 303GB 4201R 289340 With steel connecting rods NOVEMBER 19 1976 FOR BRANCHES DISTRIBUTORS AND CUSTOMERS CHASSIS AFFECTED ALLENTOWN No Ra Sanaredes aa de dated Tee 18 1975 HAYWARD OAKVILLE LY PURPOSE To inform the field of an alternate steering pump and also to list parts required to interchange this pump with standard pump This applies to steering pumps mounted on TU FLO 500 TU FLO501 TU FLO 600 or Midland Ross air compressors RECOMMENDATION If a replacement steering pump of original type is not available the alternate pump can be substituted as outlined in bulletin INFORMATION A Parker Hannifin pump has been released for pro duction use This pump is interchangeable with a Vickers pump if the correct drive housing and related parts are used IMPORTANT It is recommended that the Parker Hannifin pump be restricted to following applications See Figure 1 Allentown Models Use only on chassis equipped with Ross SGP48 integral power steering gear or Ross Inline Booster MB as its output matches these units Mack Western Models Chassis with Mack Six eee engine and Ross or Garrison power steering The following charts show parts required for the various combinations of pumps and compressors Note from the illustration that the TU FLO 501 and TU FLO 500
4. arrison power steering TU FLOS Imi ruan noss TFD 300 606 N PARER HANNIFIN aV ERS CKERS __PARCERSHANNIFIN oaeen asas easar asne 313 P2 12 000 and Over 12 0008 and Over 12 0008 and Over 12 COO and Over 38QC19303 78 380019323 F2 38Q019303 P8 38QC19313 PL Under 12 0004 Under 12 6 l Under 12 000 Under 12 0094 _ Bee t 756GB317 756GB20 756GH20 eee e 79268225 7920817 7926817 Zax Ges 3AXLT 12 3ZAXLTT2 bh6GC1175 P2 L20MFLU5 LA6GCLLT5 P1 STs ee Pl regga eee a DR E Sigg saa a SGT O Ring i Ring Ring _ 3AX3LTT Elbow 63AX3263 Conn BIAXBLTT Elpow S 68X410 0 63AX1740 Conn SOAKR1O 90 Ring Ring 63AX3331 Elbow 63AX3331 Elbovy 83AX3492 Elbow 83AX827 Clamp nt 835 0SHP 16 Plug 63AX3 492 Elbow BIAX627 Clamp 6635 05HP 18 Plug Required to plug side supply port See Figure 2 o J PLUG amame EB3S O5HP 16 INCLUDES O RING pe ad pm a ae anj GURE 2 MACK WESTERN WITH PARKER HANNIFIN PUMP
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