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DISTRIBUTION SYSTEMS - PRIMAR Y HYDRAULIC POWER SYSTEM

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SER VICE MANUAL

SER VICE MANUAL

Hydraulic pump - Dynamic description

T8050

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The tractor uses three hydraulic pumps which are driven through a drive housing the right side the range The pump drive housing gears are driven the O drive line and all the pumps turn approximately times engine A PFC (pressure and flow compensating) piston pump attached the front the pump drive while the tandem gear pumps are attached the rear the pump drive

The front section the tandem gear pump supplies the regulated pressure circuit: brake valve, transmission control O and dif ferential lock auxiliary and hitch valve pilot The rear section supplies charge flow the PFC The PFC pump supplies flow the priority which directs flow the steering remote valves and the three point

All hydraulic lines are equipped with O - ring face seals ensure vibration - resistant

Charge / lubrication pump

The charge / lubrication pump the rear section the dual gear pump and used supply the main PFC pump with a charged inlet condition prevent The pump also supplies lubrication and cooling requirements for the

The pump draws oil from the transmission housing through a 100 mesh suction The pump flow directed across the main filter assembly provide clean charge and lubrication

The pump flow rate rated speed 2667 RPM ( 2000 RPM engine speed) 177.0 l / min ( 47.0 gpm ) .

Regulated circuit pump

The regulated circuit pump the front section the tandem gear The pump draws oil from the system reservoir through a 100 mesh suction The pump flow passes through the regulated circuit filter housing and into the priority regulator The priority regulator valve maintains the regulated pressure circuit 22.424.5 bar ( 325 - 355 psi ) The regulated pump flow supplies the O / dif ferential lock transmission control valves and brake The remote and hitch valves are also supplied with regulated

Once these circuits are the excess regulated pump flow directed through the oil coolers and joins with the charge pump flow the downstream side the main filter

The pump flow rate rated speed 2667 RPM ( 2000 RPM engine speed) l / min ( gpm )

PFC piston pump

The axial piston pump has a variable flow output and can operate variable The pump matches the hydraulic power output the actual load requirements ensure maximum ficiency and the minimum use

The pump inlet charged prevent The pump output flow supplied the priority regulator The priority regulator valve gives top priority the steering system and trailer brake Once the steering system and trailer brake circuits are satisfied the priority regulator valve supplies pump flow the remote auxiliary valves and three point hitch

The maximum pump flow rate for the standard pump rated speed 2667 RPM ( 2000 RPM engine speed) 146.0 l / min ( gpm )

NOTE: The standard pump system delivers approximately 1 13.6 l / min ( 30.0 gpm ) through a single remote This due resistance created oil flowing through restrictive passage ways and long lengths tubing

Optional high flow PFC piston pump optional high flow PFC piston pump The high flow rate maximum pump flow rate rated speed 2667 RPM ( 2000 RPM engine speed) 220 l / min ( gpm ) .

NOTE: The high flow pump system delivers approximately 1 13.6 l / min ( 30.0 gpm ) through a single remote tion. This due resistance created oil flowing through restrictive passage ways and long lengths tubing 84318454 14/03/2010

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