Timberwolf Entec TW 190H, Instruction Manual

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SERVICE INSTRUCTIONS
16
TENSION DRIVE BELTS
CHECK HOSES
All the hydraulic hoses should be regularly inspected for chafing and leaks. The hydraulic system is
pressurized to 150 Bar (2175 PSI) and thus the equipment containing it must be kept in good
condition.
Identify the hoses that run to the top motor. These have the highest chance of damage as they are
constantly moving. If any hydraulic components are changed new seals should be installed during
reassembly. Fittings should then be retightened.
The TW 190H is subject to large vibrations during the normal course of operation. Consequently there
is always a possibility that nuts and bolts will work themselves loose. It is important that periodic
checks are made to ensure the security of all fasteners. Fasteners should be tightened using a torque
wrench to the settings listed below .
Size Pitch Head Length (mm) Detail Torque Ibft Torque Nm
Blade Bolts M16 Fine 24mm Hex 74 Specialist 100 135
Rotor Housing Clamp Bolts M16 Standard 24mm Hex 35 Standard 60 80
Hyd Motor Retaining Bolts M10 Standard 17mm Hex 35 Standard 35 50
Roller Box Retaining Bolts M20 Standard 24mm Hex 80 Partial Thread 105 140
Rotor Shaft Retaining Screws M20 Standard 17mm Hex 100 Standard 105 140
Funnel Retaining Nuts M12 Standard 19mm Hex n/a Standard 60 80
General M8 Standard 13mm Hex n/a Standard 15 22
General M10 Standard 17mm Hex n/a Standard 32 50
General M12 Standard 19mm Hex n/a Standard 55 80
CHECK FITTINGS
2
1
1. Remove the near side roller box guard.
2. Open the rotor housing.
3. Slacken the four 24mm nuts that retain the
roller box (bolt is retained underneath).
4. Slacken the lock nuts on the belt tension bracket.
5. Turn appropriate lock nut to move roller box
in desired direction. Take care to keep roller
box square. Slightly tighten nut A (fig 15)
when tension is near desired amount.
Continue to tension belts until correct tension
is achieved.
6. When the belt tension is correct tighten the
four 24mm roller box retaining nuts.
7. Tighten the lock nuts.
8. Grease the roller box slides and rollers.
9. Close the rotor housing and fasten securely.
10. Refit the near side roller box guard.
3
4
fig 14.
fig 15.
A