SCHMIDT BELT-TIGHTENING DEVICE
To tighten belt tension, proceed as follows:
1. Loosen locknuts for engine hold-down bolts only until washers
beneath spin freely.
2. Rotate 1/2" adjusting bolt clockwise until desired tension is
reached. (See Figure 4).
3. Retighten locknuts to secure engine.
DRIVE PULLEYS
Drive pulleys must be properly aligned and drive belt tension
set to specification. Improper pulley alignment and belt tension
can cause motor overloading, excessive vibration and
premature belt and/or bearing failure. (See Figure 5).
Model
4090 Series
1040 & 2040 Series
6590 Series
8422 & 8230 Series
NOTE: Engine RPM's (High – Low Settings) are factory set for maximum efficiency. Adjusting RPM's
above factory specification will void the warranty.
MAINTENANCE (con't)
(FOR GAS UNITS ONLY)
GASOLINE ENGINE RPM SETTINGS
Top RPM
2950
2775
3150
3000
Idle RPM
1900
1900
1900
1900
- 13 -
Pump RPM
1025
1175
1125
900