Operation Manual

Table Of Contents

Job Card No.:

Engine:

F iling No.:

Timing Gear Train

Inspection / Gauging

0178-09-10 1114

Job:

Inspecting the Gears

Remove lateral cover on timing chest and turn engine. Inspect gears, especially tooth flanks, for defects, and

check that all bolts are locked where necessary. Operate priming pump and make sure that all gears are

properly lubricated.

Gauging the Backlash

Measure backlash with a dial gauge. To do this, fix one gear by wooden chock and move mating gear in both

directions. Read difference from gauge.

For moving camshaft gears, release screws for valve clearance adjustment.

Renew gears with an unsatisfactory mesh pattern or excessive backlash. If necessary, consult Deutz (Job

Card 04.04.01).

The following timing gear train diagram below shows agreement of mating marks with the No. 1 piston

in compression TDC (both valves closed).

While gear fulcrums are connected to the

engine’s main lube circuit, the gears themsel-

ves are lubricated by oil jet. Although gears

normally have a long life, the ingress of foreign

particles may cause premature wear and tear.

04.08.01 Page 1 of 2

S/BV 6/8/9 M 628

Inspection / Gauging

Inspect and measure backlash of gears in main

timing gear train (engine’s driving end) and pump

drive (engine’s free end).

Tools:

- Standard tools

- Dial gauge with magnetic holder