36
h. Replace check valve on intercooler condensate drain line.
i. Check daily operating records for intercooler and aftercooler efficiency. Clean cooler
cores if required. The preferred method of cleaning the exterior is to blow the core off
with compressed air in a direction parallel to the fins in order not to damage them. If a
pressure washer is used care must be taken to avoid wetting any electrical
connections. Contact your local distributor for more information.
j. Check daily operating records for oil cooler efficiency. Clean cooler core exterior if
necessary. If the inside of the oil cooler needs cleaning, disconnect the cooler from
the oil plumbing. Oil passages, when slightly fouled, are to be cleaned with ethylene
perchlorate or an equivalent solvent. Cleaning time is between 10 and 30 minutes.
After cleaning, blow out the solvent with compressed air.
WARNING:
Take care when using solvent so that it is not allowed to contaminate the
surrounding areas. Consult the solvent supplier's Material Safety Data
Sheet for application and disposal requirements.
k. Inspect safety valve for abnormal wear or damage.
WARNING: Federal, State, and Local regulations require periodic testing of the
Safety Valve by a certified testing agency. It is the responsibility of the
compressor owner to have the valve properly tested at the mandated
intervals.
l. Test low oil pressure shutdown while the compressor is running. With normal oil
pressure showing on the HMI, close the oil pressure transmitter isolation valve and
lower oil pressure by slowly opening the oil sample valve (see figure 3). Alarm should
occur, and the compressor shut down, when pressure is lowered to below 20 PSIG.
m. Test all temperature shutdowns by individually lowering the set points for each
temperature alarm, to lower than ambient. Confirm that the alarm list shows the
proper message as a currently active alarm. Return the set point to required value
and reset the alarm before testing the next shutdown.
n. Reset unloading system service counter to zero. For details refer to the Description of
Operation manual for the installed program.
o. Obtain coolant sample (Level 2)
p. Inspect and lubricate base steering turntable
(
FIGURE 15
). Use Lithium-Based EP2 Grease to
lubricate the 8 (eight) Zerk fittings until grease
comes out, then rotate as far as possible and
repeat.
6.8. Every 2500 Service Hours
a. Check engine valve lash.
b. Check engine valve actuators.
6.9. Every 3000 Service Hours or 3 Years
a. Change coolant.
6.10. Every 4000 Service Hours
a. Inspect engine mounts.
FIGURE 15 - TURNTABLE