B8J200880_E - Maintenance
The service status word is made up of 8 hexidecimal digits. To decode this word, convert
each digit into a 4-digit binary number in the same manner as the system status word,
which is described in Decoding system status words on page 116.
Each binary digit (bit) represents a flag that is either active (state 1) or not active (state
0). To help decode the service status word, each bit is numbered (starting with 0 for the
least significant to 31 for the most significant) as shown in Decoding system status words
on page 116. The meaning of each bit in the service status word is given in Flashing
service codes on page 114.
Table 24 Service flags
Set when hours until bearing service due = 0
or bearing replace required due to inactivity
per bit 9 below
Set when hours until pump service due = 0
or cycles until pump service due = 0
Set when hours until controller service due =
0
Service is due, or underway per bit 12 below.
Specific operation required should be
determined by checking the bits above, and
10 and 11 below
Bearing conditioning
required flag
Set on exceeding Bearing Run In Mode
(BRIM) inactive period, typically 1 year.
Cleared on full BRIM completion, provided
no step forward, or these three conditions:
1) TMP start while bit 8 or 9 set, but without
full BRIM enabled.
2) BRIM disable while bit 8 or 9 set, whether
or not BRIM underway.
3) TMP stop while BRIM underway.
Bearing replace
required flag
Set on exceeding Bearing Replace (BR)
inactive period, typically 3 years. Cleared on
BR confirm.
Bearing conditioning
required
Per bit 8, but suppressed if bit 11 or 12 set
Per bit 9, but suppressed if bit 12 set
Bearing conditioning
running
Set if Bearing conditioning is presently
running, from start to Post Ramp (PR)
commence
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