20
SERVICE INSTRUCTIONS
TIMBERWOLF
TW 190TVGTR
1
1.
Loosen the three outermost M8 nuts and bolts.
2.
Pivot pump assembly up or down to achieve the
correct belt tension. For instructions on checking
belt tension & correct belt tension values, please refer to the
Timberwolf V-Belt Tensioning Data Table (pg. 55).
3.
Hold assembly at this position while tightening the three M8
nuts and bolts.
2
1
1.
Remove the near side roller box guard.
2.
Open the rotor housing.
3.
Remove off side engine guard panel.
4.
Slacken the four 24 mm nuts that retain the
roller box (bolt is retained underneath).
5.
Slacken the lock nuts on the belt tension
bracket.
6.
Turn appropriate lock nut to move roller box in
desired direction. Take care to keep roller box
square. Slightly tighten nut A (see diagram)
when tension is near desired amount.
Continue to tension belts until correct tension is
achieved. For instructions on checking belt
tension & correct belt tension values, please
refer to the Timberwolf V-Belt Tensioning Data
Table (pg. 55).
7.
When the belt tension is correct tighten the
four 24 mm roller box retaining nuts.
8.
Tighten the lock nuts.
9.
Grease the roller box slides and rollers.
10.
Close the rotor housing and fasten securely.
11.
Refit the near side roller box guard.
12.
Refit offside engine guard panel.
4
5
A
NOTE: There will normally be a rapid drop in tension during run-in period for new belts. When new
belts are fitted, check the tension every 2 - 3 hours and adjust until the tension remains constant.
Belt failures due to lack of correct tensioning will not be covered under your Timberwolf warranty.
TENSION DRIVE BELTS
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.
TENSION BELTS
CHECK HOSES
TENSION HYDRAULIC PUMP BELT
