Pistons (installation mark on the piston head)
Chassis number 738/../ to 743/../
Piston ring 1 axial play (keystone ring)
Measure using a trapezoidal groove wear
gage
Piston ring 2 axial play (tapered ring)
0,15 mm (wear limit)
Piston ring 3 axial play (oil control ring)
0,10 mm (wear limit)
Cylinder bore
System
The piston runs directly in the crankcase.
Hardened contact surface.
Bore (diameter, normal)
101 mm
Torque values: diesel engine (DEUTZ TCD 6.1)
Chassis number 738/../ to 743/../
Cylinder head bolts:
• Sealing surfaces (cylinder head/crankcase), oil-free.
• Screws oiled.
• Tighten crosswise from interior to exterior.
Note:
Cylinder head bolts can be used a maximum of 3 times with
written confirmation; otherwise replace each time they are
loosened.
Stage 1: 40 Nm (pre-load value)
Stage 2: 70 Nm (pre-load value)
Stage 3: +90° (1st re-tightening angle)
Stage 4: +90° (2nd re-tightening angle)
Cylinder head cover
8,5 Nm
Crankshaft main bearing cap
Stage 1: 50 Nm (pre-load value)
Stage 2: 90° (re-tightening angle)
Stage 3: 90° (re-tightening angle)
Locknut (hexagon socket) to the valve adjustment screw
20 Nm
Valve cover to rocker arm housing
9 Nm
Rocker arm housing to cylinder head
20 Nm
Upper rocker arm shaft to rocker arm housing
10 Nm
Lower rocker arm shaft to rocker arm housing
25 Nm
Big-end bearing cap to connecting rod
Screws oiled
NOTE:
Use new screws each time they are loosened.
Stage 1: 30 Nm (pre-load value)
Stage 2: 60° (re-tightening angle)
Stage 3: 60° (re-tightening angle)
Lubricating oil sump to crankcase
NOTE:
Note the length of the screws.
30 Nm
1. Tractor
FENDT 700 Vario S4
1-43
X990.005.538.013