MAINTENANCE
45
7.3 Mechanical Settings and Adjustments
7.3.1 Turntable Drive Belt
Tools
Force Gauge (Figure 7.6)
5 mm hex wrench
Tape Measure
10 and 13 mm Wrench, Socket
Results
The tension on the belt is set correctly.
New Belt Tension – 11 kg (25 lb) of force at 25 mm (1”)
deflection.
Used Belt Tension – 9 kg (20 lb) of force at 25 mm (1”)
deflection.
Install the turntable top to the drive ring before you adjust
the belt tension.
Procedure
1. Use a 5 mm hex wrench to remove the belt guard from
the base (Figure 7.7).
2. Measure the belt tension (force gauge and tape
measure). Measure the tension at the edge of the
turntable (Figure 7.9). If the tension is correct, replace
the guard.
To adjust:
3. Use a 10 mm wrench, socket to remove the turntable
drive guard.
4. Use a 17 mm wrench, socket to loosen the 3 bolts that
hold the drive assembly to the base.
5. Use the tension screw (Figure 7.8) to adjust the tension
of the belt (13 mm wrench).
6. Use a force gauge (Figure 7.6) to measure the tension of
the belt. Measure at the edge of the turntable top.
7. Tighten the bolts.
8. Replace the drive guard and the belt guard.
Figure 7.7
Figure 7.8
Figure 7.9
Figure 7.6