140H&160H MGR Presentation

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7/27/2019 140H&160H MGR Presentation

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Gen eral In fo rm at ion

• The H-Series MGR is equipped with a counter shaft T/M.

• These T/Ms have eight forward speeds and sixreverse speeds.

• These speeds are electronically controlled bythe electronic control module (ECM).

(1) T/M CONTRO L

Tran sm iss io n Oil Co o ler

• The T/M oil cooler is mounted next to the engineon the right side of the M/C.

• T/M oil cooler uses engine coolant in order tocool the T/M oil.

• The cooled oil is used for the T/M lubrication.

• Oil cooler relief valve setting is 520 kPa (75 psi).

(2) T/M OILCOOLER

(3) T/M OIL FILTER

Trans m iss ion Oil Pum p

• Supplies oil at a rate of 105 L/M at 2000 RPM.

• Conta ins :

-T/M scavenge pump which transfers oil

from T/M sump to differential sump.

-T/M charging pump which transfers oil from

differential sump to T/M filter.

(4) T/M PUMP

T/M CHARGING PUMP SCREEN & MA GNETIC FILTER

T/M SCAVENGE PUMP SCREEN & MAGNETIC FILTER

(6) DIFFERENTIAL LO CK VALVE

Tran sm iss io n Con t ro l Valve

• T/M control valve consists of one main relief

valve, one priority reducing valve, one manualmodulation valve, wiring harness, eight solenoidvalves, and eight modulating reducing valves.

• Provides the proper flows and pressures in order to engage the desired T/M clutches.

(9) T/M CONTROL VALVE

T/M CONTROL

Main Relief Valve

• The main relief valve is located in the top frontquadrant of the inside valve body.

• It provides a restriction in the flow that sets theoutlet pressure of the T/M pump.

• Oil bypasses the main relief valve flows to T/Moil cooler line.

MA IN RELIEF VALVE

Prior i ty Red u cin g Valve

• Located at the top rear quadrant of the insidevalve body.

• Reduces the supply pressure to the selector valves and solenoids.

• Provides priority to the selector valves and to thesolenoids that are over the fill for T/M clutch or over the modulation for the T/M clutch.

Mod u lat io n Redu c in g Valve

Provides a unique pressure for each T/M clutchthrough different combinations of the springsand the orifices.

Solen o id Valves

• Solenoid valves connect pressurized oil from thepriority reducing valve to the correspondingselector spool.

SOLENOID VALVES

OUTPUT SHAFT

INPUT SHAFT

SECOND / REVERSE SHAFT

THIRD / FIRST SHAFT

FORWARD SHAFT

HIGH / LOW SHAFT

• FORWA RD Gears & Clutch es: 1 st F. Gear (No. 1, No. 6 and No. 7) clutches.

F. Gear (No. 2, No. 4 and No. 7) clutches.3 rd F. Gear (No. 2, No. 5 and No. 7) clutches.4 th F. Gear (No. 1, No. 5 and No. 7) clutches.

F. Gear (No. 1, No. 6 and No. 8) clutches.6 th F. Gear (No. 2, No. 4 and No. 8) clutches.7 th F. Gear (No. 1, No. 4 and No. 8) clutches.8 th F. Gear (No. 1, No. 5 and No. 8) clutches.

Transmiss ion

• REVERSE Gears & Clu tch es:

R. Gear (No. 3, No. 6 and No. 7) clutches.2nd R. Gear (No. 3, No. 4 and No. 7) clutches.3 rd R. Gear (No. 3, No. 5 and No. 7) clutches.4 th R. Gear (No. 3, No. 6 and No. 8) clutches.5 th R. Gear (No. 3, No. 4 and No. 8) clutches.6 th R. Gear (No. 3, No. 5 and No. 8) clutches.

Transmiss ion

• The differential is used to transfer power fromthe T/M output shaft to the final drives.

• The differential allows the rear wheels to turn atdifferent rates of speed.

• The differential allows the inside wheels to turnat a slower rate of speed than the outsidewheels when the M/C is turned.

Different ia l & B ev el Gear

Differen t ial L o c k

• Allows the M/C wheels to turn at equal speed asif both tandem drives are being driven by thesame shaft.

• Differential lock control switch controls asolenoid activated hydraulic valve, that is held

open ( lock pos i tion ) or closed ( un lock pos i t ion ).• Differential lock control switch can be engaged

in any speed.

DIFFERENTIAL L OCK CONTROL SWITCH

(6) DIFFERENTIAL LO CK VALVE

• The final drive is a planetary gear system thatincreases the torque to the wheels.

• The final drive also transfer torque to the wheels.

Final Drive & Tan d em Drive

• Center shift function is to allow the armassembly and the circle to move in order toplace the blade in the correct position for the job.Center shift lock switch.Solenoid.

Center shift lock cylinder.Center shift lock indicator.Center shift indicator.

Cen ter s h i f t Lo ck

CENTERSHIFT LOCK CONTROL SWITCH

B lade Cush ion A cc um ulato rs

B lade Cus h ion A ct ivat ion Sw i tch

140H&160H MGR Presentation

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