Service manual

Argo Service Manual Wheels, Axles & Chains
Ontario Drive & Gear Limited www.odg.com
PH.(519)- 662-2840 FAX (519)- 662-2421
WA-15
7. Inspect the upper and lower tensioner arms for any cracks or bends and warping. A
twisted or bent tensioner arm can cause uneven wear on the block, or cause the
spring that tensions the 2 halves together to inadvertently pop off during vehicle
operation. Replace as required.
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On 8x8 models manufactured from serial numbers CB16049 & RB16104, or
6x6 models from serial numbers C12747, BF9212, SN10191 & S10178:
1. Remove the floor pans.
2. Turn the tensioner cam assembly in the direction which winds up the torsion spring
and push the assembly down as close as possible to the cam follower to loosen the
chain. Clamp it in this position with a Vice-Grip 10CR or similar plier as illustrated
in Photo WA-23, then remove the chain.
WA-23 WA-00
4. With the chain removed, unfasten the clamp holding the chain tensioner system and
let it unwind to its top most position. Unfasten the spring at the cam's tab. Photo
WA-24
5. To pull the tensioner assembly free of
the frame guides, push the the long
shaft side of the cam assembly down
to the bottom of the guide. At the
same time raise the opposite side up
and out of the guide.
Photo WA-25 & 26
WA-25
Disassembling the Chain Tensioner System
WA-24