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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 15 (Automatic Transmission (Re7R01B) (1 Of 2)) >> System Description >> Structure And Operation >> Transmission >> Component Description

Component Description

WARNING: This page is about a different variant/trim than selected.

Name of the Part (Abbreviation)

Function

Front brake (FR/B)

Fastens the under drive carrier.

Input clutch (I/C)

Connects the input shaft, the mid internal gear and the rear carrier.

Direct clutch (D/C)

Connects the rear carrier and the rear sun gear.

High and low reverse clutch (HLR/C)

Connects the rear sun gear and the mid sun gear.

Reverse brake (R/B)

Fastens the rear carrier.

Low brake (L/B)

Fastens the mid sun gear.

2346 brake (2346/B)

Fastens the under drive sun gear.

1st one-way clutch (1st OWC)

Allows the under drive carrier to turn freely in the forward direction but fastens it for reverse rotation.

2nd one-way clutch (2nd OWC)

Allows the rear sun gear to turn freely in the forward direction but fastens it for reverse rotation.

Torque converter

Amplifies driving force the engine, and transmits it to transmission input shaft.

Oil pump

Driven by the engine, oil pump supplies oil to torque converter, control valve assembly, and each lubricating system.