MAINTENANCE
70
ITEM
NO.
ITEM
8 Hr./
Daily
250
Hr./
6 wks
350
Hr./
2 mo.
500
Hr./
3 mo
1000
Hr./
6 mo.
2000
Hr./
1 yr.
PROCEDURE
OR QUANTITY
SPECIFICATION
29
PCV VALVE (GM V--6)
X
C
1
See Parts Manual
30
CRANKCASE BREATHER
GM V--6
X
C
1
See NOTE 6
See Parts Manual
CRANKCASE BREATHER
Perkins 4.2482
X
C
1
See NOTE 6
See Parts Manual
CRANKCASE BREATHER
Perkins 1004--42 and
1104C--44 (RE)
X
C
1
See NOTE 6
See Parts Manual
TIMING
GM V--6
X
Adjust as Required
0
˚
BTDC @650 rpm
TIMING
Diesel, All Units
X
Adjust as Required
16
˚
BTDC Static
VALVE ADJUSTMENT
GM V--6
X
Not Adjustable
VALVE ADJUSTMENT
Diesel, All Engines
Inlet (Cold)
X
Adjust as Required
0.20 mm (0.008 in)
X=Check
C=Change
L=Lubricate
NOTE 6: Both H135--155XL, H135--155XL
2
, H155XL, and H70--110XL units require a check of the crankcase breather after
every engine oil change. For H70--110XL units, change the crankcase breather after 1000 hours of operation.
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