Perkins New 1000 Series, Workshop Manual, Page: 116 / 290

15
116 Workshop Manual, TPD 1350, issue 3
New 1000 Series
Idler gear and hub for the Bendix
compressor
The latest compressor is made by Bendix and is
driven directly from the engine timing case and does
not have an auxiliary drive assembly. The engine idler
gear (A12) drives the compressor gear (A4) through a
separate idler gear (A11/B4) fitted onto a hub (A9).
The hub is fastened to the back of the timing case
(A5) by a bracket (A3).
The idler gear is fitted on a needle roller bearing (A7)
which is fitted onto the hub. The hub has an "O" ring
(A1) to prevent oil leakage from the rear of the timing
case. The roller bearing and the idler gear are
retained on the hub by a plate (A10) which is fastened
to the idler hub.
To remove and to fit 15-5
To remove
1 Set the piston of number 1 cylinder to TDC, see
operation 17 -1 or operation 17-2.
2 Remove the timing case cover (A6) , see operation
15-1 .
Caution: Do not rotate the engine crankshaft or the
compressor crankshaft if the idler gear is removed. If
either of the crankshafts are moved, the compressor
must be timed to the engine.
3 Release the three setscrews (A8). Remove the
plate (A10) which retains the idler gear (A11).
Remove the gear and the needle roller bearing (A7)
from the idler hub (A9).
4 Remove the three cap screws (B3) which fasten the
idler hub to the bracket (B2) at the rear of the timing
case (B1). Remove the idler gear hub.
5 Remove and discard the "O" ring (A1).
6 Inspect the idler gear, needle roller bearing and
idler gear hub for wear and other damage and, if
necessary, renew them.
6 1 2 1 1 1 0 9 8 7
5 4 1 3 2
A
A 0 29 1
1
4
2
3
B
A 0 29 5
6 1 2 1 1 1 0 9 8 7
5 4 1 3 2
A
A 0 29 1
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