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Eaton 72400, Информация по ремонту

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17

Model 72400

1

Inspect

?

Repair

or

Replace

Defective

Action

Step

Comment

Number

Decision

Solution

Symptom:

Gauges Recommended

Inlet vacuum gauge: 2 bar to 1 bar [30 PSI to 30 inHg]
System pressure gauge: 700 bar [10,000 PSI]
Charge pressure gauge:  0 to 50 bar [0 to 600 PSI]
Case pressure gauge: 0 to 25 bar [0 to 300 PSI]

Pressure Ports
Tee in line to check System
Pressure

Drain Port
Tee in line to check Case
Pressure

Auxiliary Port
Check Charge Pressure

Charge Pump Suction Port
Tee in line to check Inlet Vacuum

Figure 3-1

Explanatory
Diagram

Fault - Logic
Trouble Shooting

This fault - logic trouble shooting guide is a diagnostic aid in
locating transmission problems.

Match the transmission symptoms with the problem statements
and follow the action steps shown in the box diagrams. This will
give expedient aid in correcting minor problems eliminating
unnecessary machine down time.

Following the fault - logic diagrams are diagram action
comments of the action steps shown in the diagrams. Where
applicable, the comment number of the statement appears in
the action block of the diagrams.

Recommended Gauge Locations

Содержание 72400

Страница 1: ...Eaton Medium Duty Piston Pump Model 72400 Servo Controlled Piston Pump v 04 Repair Information...

Страница 2: ...p from the vehicle Cleanliness is extremely important Clean the port areas thoroughly before disconnecting the hydraulic lines Plug the pump ports and cover the open hydraulic lines immediately after...

Страница 3: ...JB Revision level of parts list Last two digits of year built 93 for 1993 etc Required Tools 9 16 in Hex Key Allen 5 32 in Hex Key Allen 5 16 in Hex Key Allen 3 32 in Hex Key Allen 5 64 in Hex Key All...

Страница 4: ...3 43 37 4 19 20 19 4 4 19 20 19 4 45 3 31 28 1 28 2 40 40 1 41 41 1 39 1 38 38 1 9 12 17 61 7 6 60 12 61 7 11 16 53 52 48 26 47 36 34 18 10 8 14 2 Serial Code and Product Number Location 51 Shaft ass...

Страница 5: ...thand Rotation Righthand Rotation 27 29 29 1 22 22 1 21 21 1 57 57 1 23 29 2 33 42 49 50 46 24 25 27 29 29 1 22 22 1 21 21 1 57 57 1 K1 K1 1 K1 4 K1 3 K1 2 K3 44 35 K2 35 K2 1 32 32 29 2 62 62 42 49 5...

Страница 6: ...D 23 4 Cap Screw 3 8 16 57 2 mm 2 25 in Long 24 2 Cap Screw 3 8 16 88 9 mm 3 5 in Long 25 2 Cap Screw 3 8 16 101 6 mm 4 0 in Long 26 6 Cap Screw 27 1 Valve Plate 28 1 Housing Assembly 28 1 1 Housing 2...

Страница 7: ...e 53 1 Control Valve Orifice 55 1 Coupler 11 tooth 56 2 Retaining Ring 57 1 Bypass Valve Actuator or Plug 57 1 1 O ring 2 21 mm Dia x 16 36 mm I D 087 in Dia x 644 in I D 60 1 Washer 61 8 Washer 62 4...

Страница 8: ...15 Remove retaining ring from the front of housing Press the shaft shaft seal or spacer and washer from housing Remove retaining ring thrust washer thrust bearing second thrust washer and second reta...

Страница 9: ...ing 10 Install servo piston follower onto swashplate dowel pin Install swashplate carefully onto bushing coat bushing surface with hydraulic oil aligning servo piston follower with slot in servo pisto...

Страница 10: ...o the endcover with steel side against endcover 17 Install endcover assembly onto housing assembly Make sure ports are positioned correctly valve plate and gasket stay in place No gerotor charge pump...

Страница 11: ...p adapter assembly It should not be scored excessively Numbered End Gerotor Pocket 2 41 mm 095 in Flange Figure 1 2 Reassembly Charge Pump Adapter Assembly 1 If necessary press new bearing or bushing...

Страница 12: ...haft Adjust set screw until it bottoms out on input shaft and back out one quarter turn 6 Install wiper seal on input shaft as shown in figure 2 2 7 Install new o ring onto plug retaining valve spool...

Страница 13: ...ches Figure 2 1 Figure 2 2 Item Qty Description 48 1 1 Control Housing 48 2 1 Plug 48 3 1 O ring 48 4 1 Retaining Ring 48 5 2 Spring Retainer 48 6 1 Spool Centering Spring 48 7 1 Valve Spool 48 8 1 Se...

Страница 14: ...ve into manifold by hand until top o ring is met by manifold Then wrench tighten to 34 N m 25 lbf ft max Loosen Nut retaining coil to reposition if necessary and re torque 5 4 to 7 N m 4 to 5 lbf ft 3...

Страница 15: ...install neutral lockout switch into adapter The adjustment procedures for the switch are as follows a Install switch while moving control arm back and forth until detent action is detected Back out t...

Страница 16: ...screw and 1 ea 3 8 in N C nut To remove spring place one of the flat washers over the 3 8 in x 3 1 4 in cap screw Put cap screw through the center of the cylinder barrel and apply the second washer Le...

Страница 17: ...Pump Suction Port Tee in line to check Inlet Vacuum Figure 3 1 Explanatory Diagram Fault Logic Trouble Shooting This fault logic trouble shooting guide is a diagnostic aid in locating transmission pr...

Страница 18: ...Ok Ok Ok 5 6 7 Symptom System Operating Hot Check Oil Level in Reservoir Fill to Proper Level Defective Below Level Repair or Replace Check System Pressure Reduce System Load High Ok 10 Inspect Charg...

Страница 19: ...pect Bypass Valve If used Repair or Replace Defective Ok Ok Ok 11 2 8 Symptom System Response Sluggish Check Charge Pressure Low Defective Repair or Replace Inspect Motor Ok 13 Inspect Servo Piston 4...

Страница 20: ...l to Proper Level Defective Below Level Repair or Replace Check System Pressure Ok 11 Inspect Charge Relief Valve Repair or Replace Defective Ok 12 Inspect Charge Pump Repair or Replace Defective 14 I...

Страница 21: ...tial or full open position 9 Inspect Inlet Screen or Filter for a plugged or clogged screen or filter element b obstructed inlet or outlet c open inlet to charge pump 10 Check System Pressure a See fi...

Страница 22: ...s and turn the engine over for 15 seconds 5 Replace the coil wire or return the fuel flow to the injectors Place the transmission unit in the neutral position start the engine and run it at a low idle...

Страница 23: ...23 Model 72400 Notes...

Страница 24: ...Order parts from number 06 06 642 Parts Information booklet Each order must include the following information 1 Product and or Part Number 2 Serial Code Number 3 Part Name 4 Quantity...

Страница 25: ...rie MN 55344 USA Tel 952 937 9800 Fax 952 294 7722 www eaton com hydraulics Eaton Fluid Power Group Hydraulics Business Europe Route de la Longeraie 7 1110 Morges Switzerland Tel 41 0 21 811 4600 Fax...

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