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Series 40 - Hydrostatic Transmission Service,LLC Offers Sundstrand Hydrostatic Parts and Sundstrand
Hydrostatic Repair

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Hydrostatic Transmission Service LLC

http://www.hydrostatic-transmission.com
http://www.hydrostatic-transmission.com
http://www.hydrostatic-transmission.com

http://www.hydrostatic-transmission.com

Series 40 - Hydrostatic Transmission Service,LLC Offers Sundstrand Hydrostatic Parts and Sundstrand Hydrostatic Repair

Shaft Seal

Hydrostatic Transmission Service,LLC offers lip type shaft seal on Series 40 pumps and motors The seals on these pumps and motors can be replaced with no major disassembly to the unit, although, replacement of the shaft seal calls for removal of the pump or motor from the machine. Then take out the retaining ring from the housing.

With great ease take out the seal from the housing bore. A slide hammer type puller should be used to aid in prying the seal out, otherwise the seal may become punctured if using a sharp instrument. Restraint should be taken so the housing bore or shaft doesn’t become damaged. The seal is not reusable after it’s removal.

Before installing the new seal, look the sealing areas over on the shaft for rust, wear, or contamination. Also if it calls for it polish the sealing area.

The key end of shaft needs to be wrapped with lightweight plastic to avoid damage to the seal lip during installation. Grease the inside thickness of the new seal with petroleum jelly.

Slide the new seal over the shaft and press it into the housing bore. Be careful not to damage seal. A seal installer tool can be made to aid in installing the seal. Dimensions for this tool are shown in the accompanying drawing.

Reinstall the seal-retaining ring.

http://www.hydrostatic-transmission.com

Bypass Valve (Pump)
Unbolt the bypass valve from the housing. Look over the valve and mating seat for damage or foreign material and while this is open Hydrostatic Transmission Service,LLC recommended the O-ring and back up ring be replaced.
NOTE: Bypass valves are available with basic bypass orifices for specific applications. Hydrostatic Transmission Service,LLC recommends referring to the suitable Service Parts Manual for more information.
Then put back the bypass valve into the housing. Torque to 7to10tt.lbs. (9.5 to 13.6 Mm).

Drive shafts - a wide assortment of options are offered to suit every requirement.


High power swash plates on variable pumps and motors - oppose deflection under high load.


High potency cast iron housings -
supply greater noise damping and wall force.


High flow check valves in pumps –maintain the system at it’s highest performance with very little drop in pressure.


Charge pumps on pumps - gerotor type, numerous displacement options are accessible to curtail the needs of every purpose. Pumps are made of cast iron.
Cartridge shaft seal-allows itself to easy serviceability. Motorized face seal design makes the pumps more efficient for high speed and case pressure

 
Advanced cylinder barrel design –helps with high pressure and speed.


Fixed clearance slipper hold down -
 Models 33 through 64 allow functions at high speed and decrease resistance. Model 76 is a ball guide unit.


Pistons - have more contact with cylinder bore ensuring low leakage.
Hydraulic servo control – offers effortless operation, along with very low control pressure.The hefty servo pistons grasp the swash plate position and offer damping.


Large case drain ports - lessen case back pressure.
 

            • Motor Performance
    • Model (unit Number)

      33

      39

      46

      54

      64

      76

      Displacement

      in'/rev

      3.32

      3.89

      4.60

      5.44

      6.44

      7.62

      cm'/rev

      54,4

      63,7

      75,3

      89,1

      105,5

      124,8

      Highest Shaft Speed

      RPM

      @ 18°

      4510*

      4160

      4160

      3720

      3720

      2775

      RPM

      @ 10°

      5380-

      5380-

      5380"

      4810-

      481(T

      3425-

      Highest Amoutn of Torque t

      Ib-in

      2959

      3511

      4149

      4916

      5807

      6911

      Nm

      334

      397

      469

      556

      656

      781

      The highest swash plate angle on model 33 motors is 15.5°.
    • These shaft speeds need the highest amount of charge pressure release: 340 psi [23 bar] pump and 280 psi [19 bar] motor.

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Hydrostatic Transmission Service, LLC offers hydraulic pump, hydraulic motor, hydraulic valve repair, Gear pump repair, piston pump repair, vain pump repair, and all pump repair

For the following Equipment

Nachi, Sundstrand, Eaton, Vickers, Racine, Commercial, Cessna ,Poclain, Hitachi, Kawasaki, Dynapower, Oil-Gear,Shibaura ,Volvo, Denison, komatsu, Hydash ,Rexroth ,Uchida, Breuninghaus Yamaha, Barnes ,Mitisibushi, Sumitimino,

When you need All Hydraulic Pump Repair, call us first!

If We can not help you we will put you in touch with someone who can.

All Pump Repair

Hydraulic pump, Hydraulic motor, Hydraulic valve, piston pump Repair Center.

We offer hydraulic pump repair hydrostatic drive repair hydraulic transmission repair hydraulic motor repair hydraulic equipment repair for the following

Sundstrand, Eaton, Rexroth, Kawasaki, and others.

CALL US FOR YOUR REPAIR ON DIFFICULT TO LOCATE HYDRAULIC TRANSMISSION REPAIR.

MITSUBISHI, KAWASAKI, DAEWOO ,DYNAPOWER, LINDE, REXROTH, UCHIDA, YAMAHA, HITACHI, KOMATSU, LIEBHERR, POCLAIN, VOLVO, VICKERS, CESSNA, HYDROMATIK AND SUNDSTRAND AND EATON CLOSED LOOP AND OPEN LOOP HYDRAULIC DRIVE PUMPS AND MOTORS.

 

(800) 361-0068

2835 Westover Park Suite A 
Tupelo, MS 38801
Phone: (662) 680-8899
Toll Free: (800) 361-0068

Email: [email protected]

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Disclaimer: All references to OEM words are strictly for reference only and does not imply that we are an OEM distributor.

This web site is Copyright © 2004 - 2005, Hydrostatic Transmission Service LLC. All rights reserved.

 

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