Terberg TTA 70-xx Tractor Axle Service Manual PDF (TD1472-03)

Description

Terberg TTA 70-xx Tractor Axle Service Manual  (TD1472-03) PDF DOWNLOAD

Description

Terberg TTA 70-xx Tractor Axle

Factory Service Manual – Document TD1472-03 (Edition 03-2014)

This is the official Terberg Benschop B.V. factory service manual for the TTA 70-xx planetary rear axle system, including both:

• Single axle (RR)

• Drive-through axle (FR)

Designed for professional workshop technicians, this manual provides complete procedures for differential overhaul, bearing pre-stress adjustment, shim calculations, backlash measurement, planetary gear servicing, lubrication specifications, torque settings, and brake system refinishing.

Total length: 110 Pages

✅ Axle Types Covered

• TTA 70-xx RR (4×2 single axle)

• TTA 70-xx FR (6×4 drive-through axle)

• Reduction ratios: 7.49 / 9.49 / 11.98

📑 Table of Contents (Organized Overview)

🔹 1. Key to Symbols

• Repair symbols legend

• Safety warnings

• Lubrication indicators

• Tightening and machining symbols

🔹 2. Remarks

• Tolerances & wear limits

• Turn-of-nut tightening method

• Abbreviations

• Wheel nut torque procedure

🔹 3. Lubrication & Maintenance Instructions

• Initial oil fill specification (API GL5)

• Oil grade & viscosity chart

• Oil filling capacities (RR & FR)

• Oil change intervals

• Differential & hub oil separation

• Oil change procedures (single & drive-through axle)

• Wheel hub service procedure

🔹 4. Wheel Hub Service

• Disassembly procedure

• Brake anchor plate assembly

• Hollow wheel carrier assembly

• Planetary gear assembly

• Bearing pre-stress settings

• Flank clearance of planetary gears (0.15–0.3 mm)

• Tightening torques (M1–M4)

🔹 5. Rear Axle Differential – Single Axle (RR)

• Differential removal

• Shim thickness selection

• Bearing prestressing adjustment

• Pinion assembly

• Backlash adjustment (0.2–0.3 mm)

• Contact pattern inspection

• Differential lock installation

🔹 6. Rear Axle Differential – Drive-Through Axle (FR)

• Differential disassembly

• Pinion bearing prestress adjustment

• Shim calculation formula:
  X = (A ± Z) + B − (L ± Y)

• Intermediate housing assembly

• Spur gear backlash settings

• Inter-axle differential rebuild

• Stop screw adjustment procedure

🔹 7. Driving Shaft (RR Axle)

🔹 8. Fitting the Differential Lock

🔧 Key Technical Specifications Included

✔ Reduction ratios: 7.49 / 9.49 / 11.98
✔ Crown wheel–pinion backlash: 0.3–0.4 mm
✔ Differential bevel gear backlash: 0.18–0.22 mm
✔ Spur gear backlash: 0.16–0.37 mm
✔ Bearing prestress values (Lv1–Lv4)
✔ Full torque specifications (up to 800 Nm)
✔ Brake drum finishing dimensions (Ø420 mm reference)
✔ Oil capacities for differential & hub (separate reservoirs)
✔ Pinion shim calculation examples

📌 File Details

🚀 Why You Need This Manual

When rebuilding a heavy-duty Terberg tractor axle, precise backlash settings, shim calculations, and bearing pre-stress adjustments are critical. This factory TTA 70-xx service manual provides the exact procedures and torque values required for professional-level repairs.

Buy now and download instantly to service your Terberg axle with factory precision and confidence.