User's Manual Part 2

Chapter 6 Maintenance
6.4 Preventative Maintenance
The only required preventative maintenance is for the HPA compartment air intake filters
and the air-to-air heat exchanger/heater exterior coils.
As a general rule, it is recommended that the air filters and exterior coils be cleaned every 6
months under normal conditions, or every 3 months in dusty environments. UBS would
recommend that the filters and exterior coils be inspected more frequently and cleaning
intervals be adjusted as deemed necessary by the operator.
6.5 Replacement Procedures
The following repeater components can be replaced:
Table 6-2 Replaceable Components
Name Part Number
PDU Circuit Breaker N/A
PDU Current Sensor N/A
BMS Mounting Shelf w/Controller SX03-50310-01
BMS 12 VDC Rectifier Module SX03-50320-01
BMS 12 VDC Battery SX03-50330-01
Low Noise Amplifier (LNA) SX03-50100-01
Dual Band Pass Filter (DBPF) SX03-50200-01
HBE N/A
LBE N/A
TRMS N/A
Air-to-Air Heat Exchanger/Heater SX03-50400-01
High Power Amplifier (HPA) SX03-40000-01
HPA PSU Mounting Shelf SX03-51710-01
HPA PSU 30 VDC Rectifier Module SX03-51720-01
DR Filter Box SX03-10700-03
7/8” Short U-link/Coupler SX03-10402-01
7/8” Long U-link/Coupler SX03-10403-01
7/8” Combined Output Coupler/RF Detector SX03-51430-01
7/8” Independent Output Coupler/RF Detector SX03-51450-01
Fan (Blower) Box SX03-50500-01
Air Intake Filter N/A
SX03-10000-01-M01 6-2