Wheels, Axles & Chains Argo Service Manual
Ontario Drive & Gear Limited www.odg.com
PH.(519)- 662-2840 FAX (519)- 662-2421
WA-26
1.
Perform the servicing procedure, Removing the Firewall.
2.
Check the deflection of the idler chain. If it deflects more than 1/8", adjust the
tension immediately.
3.
Loosen off the power pack frame.
IMPORTANT
When adjusting idler chain tension, be sure to always alternate between each
adjustment bolt a little at a time. DO NOT over-tighten the idler chains.
7.
Tighten all power pack mounting bolts.
6.
Secure the jam nuts of each tensioner bolt. (Prior to S8131 6x6’s only).
On ARGOS manufactured from SN7841, S8131 and all RB, CB, BF & C vehicles,
loosen the locknut in front and behind the idler axles. These are threaded to 2
mounting bolts inserted through the power pack frame from right to left attaching it
at the lower frame. See Photo WA-46 on page WA-20
On ARGOS manufactured from SN7841, S8131 and all RB, CB, BF & C vehicles,
locate the two 3/8"-16x3" bolts threaded into the lower frame channel beneath the
rear power pack mounting bolt. Turn each of these counter-clockwise to raise the
rear of the power pack frame assembly. See Photo WA-47 on page WA-21
On 6x6 models produced from S7304 and prior to S8131, undo the jam nuts at the
chain tensioner bolts and using an allen head wrench, turn the adjustment bolts
clockwise to raise the back end of the power pack frame. This will tighten the idler
chains. Models prior to S7304 will require a 3/4" socket on the adjustment bolt
head to raise the power pack frame.
5.
Refering to Photo WA-49 on page WA-22, tension the chains until the amount of
deflection is less than 1/8"
4.
Adjust the chain tension
On 6x6 vehicles manufactured prior to S8131, locate and loosen off the four 1/2"-
20x1.5" power pack frame mounting bolts. Refer to Section 4.0 Power Pack As-
sembly Illustration in the appropriate parts manual. There is one located on each
side of the power pack frame in front of the idler axles, and one visibly located on
each side of the power pack frame, behind the idler axles. These bolts are threaded
into nuts welded to the lower frame assembly.
