Argo Aurora 800 - Drive Chain Take-Up System; Replacement of Slider Blocks

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SEMBLY IS PROGRESSING PROPERLY. CHECK FOR
PROPER CHAIN TENSIONER OPERATION EVERY 10
HOURS OF VEHICLE OPERATION, WHEN THE DRIVE
CHAINS ARE BEING LUBRICATED. Each step of the cam
takes up about 3 inches of chain slack (see Fig. 7-12).
Figure 7-12. Chain slack required before the tensioner will pro-
gress to the next step.
The tensioner cannot progress to the next step until there
isenoughslackinthechain.Withthewheelsraisedothe
ground, check if the chain slack exceeds 3 inches. If it does,
then reach under the slider block assembly and pull up. Re-
move any debris that may be present in the adjuster guides.
Check for proper chain tensioner operation every 10
hours of vehicle operation.
Each chain tensioner has a single UHMW slider block. Inspect
the UHMW slider blocks for wear every 50 hours. Replace
the blocks (ARGO Part No. 606-44) when the wear groove,
as shown in Figure 7-13, measures 1/4" (6mm).
Figure 7-13. Wear groove on the slider block.
To Replace a Slider Block:
1. Removetheoor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 block across the
bottom of the frame channels. Clamp it in this position with
SECTION 7
MAINTENANCE INFORMATION
Figure 7-10. Chain connection link components.
7.2.4 DRIVE CHAIN TAKE-UP SYSTEM
Figure 7-11. Installing the connecting link.
The chain tensioning system consists of a torsion spring
loaded cam assembly with a slider block which takes up the
slackonthebottomsideofallbutthefrontnaldrivechains.
As the chain wears, the chain tensioning mechanism adjusts
semi-automatically. Under most conditions, the tensioner cam
assembly will move to the next step of adjustment simply due
to normal drive system dynamics. Sometimes, however, the
cam assembly can bind due to debris caught in the area. IT
IS VERY IMPORTANT TO CHECK THAT THE CAM AS-