Wheels, Axles & Chains Argo Service Manual
Ontario Drive & Gear Limited www.odg.com
PH.(519)- 662-2840 FAX (519)- 662-2421
WA-30
Removing the Idler Shaft (Vanguard & Vanguard2 Models)
Idler shaft assemblies on Vanguard and Vanguard2 vehicles are 1 piece assemblies. There
is no floating sprocket.
IMPORTANT
When replacing 6x6 Vanguard idler axle assemblies, as in any ARGO vehicle
component, it is extremely important to always refer to the correct vehicle parts
manual. Refer to the vehicle serial & model plate number and use the corresponding
parts manual. This will identify and ensure that the correct idler axle assembly has
been installed.
WA-61 WA-62
1. Perform the servicing procedure, Removing the Firewall.
2. Perform the servicing procedure, Removing the Battery, in section ES, and unbolt
the battery holder from the lower frame (Right side idler shaft only), in section ES.
(Vehicles prior to S/N S8131 have the battery box welded to the lower frame.)
3. Perform the servicing procedure, Removing the Driven Clutch, (Left side idler
shaft only), in section CS. (Optional, if you find it easier to access the idler shaft)
4. Remove the brake caliper (Mechanical or hydraulic) on the side of the idler shaft
being removed. You do not have to disconnect the brake line from the caliper on the
Vanguard2 hydraulic brake system. Refer to steps 1 through 4 of Removing the
Brake Pads in the brake section of this service guide. (Optional as above)
E.g. Earlier 6x6 Vanguard vehicles manufactured prior to S/N S8131 utilized a
different tooth ratio on the idler axle shaft assembly. Using a newer 6x6 Vanguard
idler shaft in an earlier 6x6 Vanguard vehicle, would result in the drive chain from
the idler shaft sprocket to the front wheel sprocket, being too loose. The same result
would be noticeable at the idler chains, between the brake disc sprocket, and idler
shaft sprocket.
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