4-13
B A S I C D Y N O O P E R A T I O N
Preventative Maintenance
Version 5
DynoWare RT Upgrade for Model 424x Dynamometers Installation Guide
PREVENTATIVE MAINTENANCE
This section covers maintenance items for all model 424 dynos with the Spring
Applied Air Release (SAAR) brake and the 4WD attachment. For more detailed
maintenance instructions, refer to the Maintenance Guide for Automotive
Dynamometers (P/N 98119101).
T
HINGS
TO
C
HECK
• Check all air fittings for leaks monthly. Correct any leaks found.
• Once per month verify the brake pressure gauge reads 100psi (690kPa). Adjust the
regulator if the pressure is out of specification. Refer to page 4-14 for more
information.
• Check the brake shoe clearance. Refer to page 4-15 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 two 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
-29°C to 93°C, intermittent to 121°C
(-20°F to 200°F, intermittent to
250°F)
EP additive
yes
examples
Mobil Mobilith AW-2
