Toro Lawn-BoySeries Service Manual page 7

This manual will cover service to the auger and traction drive systems on small and intermediate frame 2 stage
snowthrowers. Service information for Power Shift snowthrowers is contained in manual 492-0354.
The models covered are as follows*:
Model
28230
28231
28232
38051
38052
38053
38054
38056
38056C
38062
38063
38064
38065
38066
38072
38073
38078
38080
38083
38084
38085
38086
Model numbers 28XXX are Lawn-Boy.
Model numbers 38XXX are Toro.
Engines: All of the models in the table were
manufactured with engines from the Tecumseh
Products Company. Refer to their service manual for
engine information.
Note: Maximum RPM for all models is 3300 ± 150 RPM.
* This manual may be specified for products produced
before 1990 or after 2002 in addition to the models
above.
Two Stage Snowthrower Drive Systems Manual
Model Name
522R
522R
824E
522
521
824
521
521
521
622
622
622
624
824XL
724
724
824
824
824XL
824XL
824
824XL
Year
1997-2000
1997
1999-2000
2000-2001
1990-1996
2000-2002
1990-1996
1990-1991
1990
1997-1999
1997-2002
2000-2002
1990
2000-2002
1993-2000
1993-2000
2000-2002
1990-1993
1997-1999
1997-1999
1990
2000-2002
Introduction
Auger Gearbox Lubricant
MAG 1
MAG 1
MAG 1
MAG 1
MAG 1
MAG 1
MAG 1
MAG 1
MAG 1
MAG 1
MAG 1
MAG 1
90 wt.
90 wt.
MAG 1
MAG 1
MAG 1
90 wt.
90 wt.
90 wt.
90 wt.
90 wt.
Introduction - 1