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User and maintenance instructions

Models 85705 and 85705MSO, series “B” CAT branded

FlowMaster II rotary driven  
hydraulic pump

Date of issue

January 2021

Form number

404581

Version

3

Summary of Contents for 85705

Page 1: ...User and maintenance instructions Models 85705 and 85705MSO series B CAT branded FlowMaster II rotary driven hydraulic pump Date of issue January 2021 Form number 404581 Version 3 ...

Page 2: ...d to light personal injury if precautionary measures are ignored WARNING Indicates a dangerous situation that could lead to death or serious injury if precautionary measures are ignored DANGER Indicates a dangerous situation that will lead to death or serious injury if precautionary measures are ignored Contents Explanation of safety signals 2 Safety 2 Description 3 General description 3 Appropria...

Page 3: ...re or 3 500 psi 241 bar maximum outlet pressure Exceeding rated pressures may result in death or serious personal injury and damage to system components Table 1 Specifications Supply inlet hydraulic pressure Max 3 000 psi 207 bar Operating working hydraulic pressure 400 psi 28 bar Maximum output pressure 3 500 psi 241 bar Hydraulic inlet flow Up to 3 5 gal min 13 l min Pump ratio with manifold 10 ...

Page 4: ...alve Refer to Vent valve service page 5 for replacement and repair of specific areas of vent valve Refer to Safety unloader valve page 5 for replacement and repair of specific areas of safety unloader valve Identification of each part is shown in illustrated parts breakdown section Fig 2 page 7 with a corresponding number keyed to specific part General recommendations of tools required are specifi...

Page 5: ...wer assembly 39 6 Loosen and remove eight locknuts 65 on top of follower assembly 39 Fig IPB 5 page 9 7 Remove weighted follower plate 66 and follower foam 64 Replace foam 8 Reverse above procedure to reassemble Make sure long bolts are staggered with short bolts and extend below follower Float switch If float switch is not detecting proper grease level there are several possible reasons Gauge ope...

Page 6: ... pump and relieve pressure between fill pump and shut off valve in order to disconnect fill line safely Keep pressure relief valve activated until supply line pressure on gauge falls below 200 psi 13 bar Fill line can then be removed at quick disconnect point Fig 1 85705MSO only 1 All ports are 1 2 in NPTF 2 Apply two drops of 242 Loctite 180 apart 3 Torque from 30 to 35 ft lbf 41 to 47 Nm 6 ...

Page 7: ...479 mm 2 15 in 384 mm 13 in 352 mm 1 8 7 8 22 5 22 5 29 2 in 741 mm 20 18 19 17 16 15 21 22 23 24 25 26 27 11 12 13 14 5 35 34 33 14 32 31 85 86 30 36 37 38 39 28 29 4 5 6 7 8 9 1 10 1 3 1 in 13 mm 1 2 Fig 2 7 ...

Page 8: ... NPTF 46 44 45 43 42 41 13 1 4 47 48 49 50 51 52 53 38 55 54 36 37 56 57 59 58 Fig IPB 1 Outlet check assembly 3 Fig IPB 2 Vent valve 23 Fig IPB 4 Cover plug Fig IPB 3 Float switch 38 8 ...

Page 9: ...C C D D 60 60 61 62 63 64 65 66 67 68 69 70 70 71 72 73 D D C C Fig IPB 5 Follower assembly 39 9 ...

Page 10: ...w 1 20012 66 Weighted follower plate 1 276890 23 Hydraulic vent valve 1 84980 67 O ring nitrile 1 270720 24 Outlet elbow 1 10160 68 Wiper cover 1 274318 25 Lockwasher 5 16 in 2 66246 69 Wiper gasket 1 274321 26 Hex head screw 5 16 18 x 3 4 in 2 50016 70 Spacer 12 241101 27 Reservoir assembly 1 276648 71 Hex head screw 1 4 20 x 2 1 2 in 4 50062 28 Extension tube 1 276853 72 Hex head screw 1 4 20 x ...

Page 11: ...sure too low Increase pressure at pressure control valve Faulty inlet or discharge check valve in pump Replace faulty components Refer to pump manual 404582 Lubricant leaking from safety unloader valve Pressure of system set too high Adjust pressure switch setting Safety unloader damaged or contaminated Replace safety unloader Lubricant leaking from weep hole in vent valve Vent valve lubricant sea...

Page 12: ...taken to ensure the accuracy of the information contained in this publication but no liability can be accepted for any loss or damage whether direct indirect or consequential arising out of the use of the information contained herein January 2021 Form 404581 Version 3 Warranty The instructions do not contain any information on the warranty This can be found in the General Conditions of Sales avail...

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