62-12023 5-2
5.2 Installing R-404A Manifold Gauge Set
A manifold gauge/hose set is required for service of models covered within this manual. The manifold gauge/hose
set is available from Carrier Transicold. (Carrier Transicold P/N 07-00314-00, which includes items 1 through 4,
Figure 5.1). To perform service using the manifold gauge/hose set, do the following:
Table 5–4 Preventive Maintenance Schedule - Standby
Hours Service A Service B Service C Service D
100 •
1000 • •
2000 • • •
3000 • •
4000 ••••
5000 • •
6000 • • •
7000 • •
Table 5–5 Service Category Descriptions
Service A 1. Check the tension of the alternator belt(s).
2. Check that the vehicle engine runs correctly at low speed, and that the
compressor mounting kit is correctly tightened and the belt tension is cor-
rect.
3. Check the tightness of bolts and screws and that the unit is correctly fas-
tened onto the box.
4. Check tension of alternator/compressor belt.
Service B 1. Clean condenser and the evaporator coils. (Section 5.16 and Section
5.17)
2. Replace the road compressor belt.
3. Check, and if required, replace the filter drier. (Section 5.8)
4. Check the operation of cab command.
5. Check the defrost:
•Cut-in
• Fan shut-down
• Cut-out
• Defrost water drain(s)
Service C 1. Check the operation of the evaporator and condenser fans. Change the
condenser motor brushes. The evaporator of this unit is equipped with
brushless fan motors therefore, brush maintenance is not required.
2. Change the compressor oil. Use polyol ester oil (POE) approved by CAR-
RIER. Refer to Section 2.6.1.
Service D 1. Change the removable fuses and capacitors (if any) in the control box.
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