Chevrolet Low Cab Forward 6.7L Diesel Engine 6500XD (GMNA-Localizing-
U.S.-15749874) - 2022 - CRC - 12/1/21
Service and Maintenance
267
No.
Service Interval
x1,000 km
x1,000 miles
16
10
32
20
48
30
64
40
80
50
96
60
112
70
128
80
144
90
160
100
176
110
Service intervals
months or kilometers
(miles) whichever
occurs first
(1)
53
Function of parking brake valve
Every 12 months: I
Every 24 months: R
54
Rubber parts of brake valve
Every 24 months: R
55
Air brake system inspection
I
I
I
I
I
I
I
I
I
I
I
or every 6 months
56
Slack adjuster lube
L
L
L
L
L
L
L
L
L
L
L
or every 6 months
57
Slack adjuster service inspection
I
I
I
I
I
I
I
I
I
I
I
or every 6 months
58
Air brake chamber
I
I
I
I
I
I
I
I
I
I
I
or every 12 months
59
Air dryer
-
-
-
-
-
-
-
-
-
R
-
or every 3 years
60
Air compressor, governor and unloader valve
functions
-
-
I
-
-
I
-
-
I
-
-
or every 12 months
Remarks
(1)
In case this column is blank, follow
kilometers (miles).
(2)
Use of oils other than CK-4 may require
shorter maintenance intervals and may
cause nonconformity to regulations. Use of
oils with other viscosity than *W-40 may
also require shorter maintenance intervals
and may cause a problem with engine
durability.
(3)
See
.
(4)
See the Allison Automatic Transmission
Operator's Manual that came with the
vehicle to confirm maintenance interval by
customer vocation.
(5)
Refer to "Air Cleaner Indicator Light." See
.
(6)
Initial check at 1 040 km (650 mi) is
required.
(7)
Initial check at 8 000 km (5,000 mi) is
required.
(8)
Initial check at 1 600 km (1,000 mi) is
required.