Dynojet 248: Maintenance Guide - Manual (Page 24)

Maintenance Guide for Automotive Dynamometers
A U T O D Y N O M A I N T E N A N C E
Model 424x All-Wheel Drive Dynos
20
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MODEL 424X ALL-WHEEL DRIVE DYNOS
This section covers maintenance items for model 424x dynos.
T HINGS TO C HECK
• Check all air fittings for leaks monthly. Correct any leaks found.
• Check the air motor lubricator once per month and fill as necessary. Refer to
“Filling the Air Motor Lubricator” on page 21 for more information.
• Once per month verify that the SAAR 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 23 for more information.
• Check the drum brake clearance. Refer to “Maintaining the SAAR Brake Shoe
Clearance” on page 24 for more information.
• Check the air can sleeve retraction. Refer to “Checking the Air Can Sleeve
Retraction” on page 26 for more information.
• Check customer supplied air filter/dryer daily, empty and clean as necessary.
• Inspect the 4WD dyno movement rails for debris once per month. Clear any debris
from the rails.
• 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