Maintenance Guide Manual

Maintenance Guide for Automotive Dynamometers
AUTO DYNO MAINTENANCE
Model 224 Dynos with Spring Applied Air Release (SAAR) Brake System
6
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MODEL 224 DYNOS WITH SPRING APPLIED AIR RELEASE (SAAR) BRAKE SYSTEM
This section covers maintenance items for model 224 dynos with the SAAR brake.
THINGS TO CHECK
• Check all air fittings for leaks monthly. Correct any leaks found.
• Once per month verify the drum brake pressure gauge reads 100psi (690kPa).
Adjust the regulator if the pressure is out of specification. Refer to “Verifying the
SAAR Brake Pressure” on page 7 for more information.
• Check the drum brake shoe clearance. Refer to “Maintaining the SAAR Brake Shoe
Clearance” on page 8 for more information.
•Dyno Bearing Grease:
Under steady use, over 25 runs per day, each bearing should receive .65oz (19 ml)
of a recommended grease every 2 months.
Under occasional use, less than 25 runs per day, each bearing should receive
.65oz (19 ml) of a recommended grease every six months.
Recommended Grease:
grease specification description
thickener Lithium 12 Hydroxy Stearate
oil Petroleum
thickness NLGI 2
operating temperature
(Fahrenheit)
-20°F to 200°F, intermittent to 250°F
operating temperature
(Celsius)
-29°C to 93°C, intermittent to 121°C
EP additive yes
examples Mobil Mobilith AW-2