Outer Axle Flange And Bearing Lubrication; Idler Shaft Bearing Lubrication - All Models; Inner Axle Bearing Lubrication - Argo 6 x 6 Vanguard Operator's Manual

OIL, FILTER AND LUBRICATION INFORMATION
After every 100 hours of operation, remove both idler chains
from the vehicle and clean them thoroughly in a suitable sol-
vent. Allow the idler chains to dry thoroughly, re-lubricate
them generously with Argo chain lube and re-install. Refer
to section 7.2.5 of this manual for idler chain removal and re-
installation instructions.
6.4.5 Outer Axle Flange & Bearing Lubrication
DO NOT USE HIGH PRESSURE
PNEUMATIC GREASING EQUIPMENT
Each outer axle flange is equipped with two grease nipples.
Grease the outer cavity through the outer nipple of each flange
with Shell Alvania No. 2 grease or equivalent frequently, at
least every 25 hours of operation, to flush dirt and water that
may have entered the axle seal. Only a small amount of pres-
sure should be required. Grease until any contamination has
been forced out past the seal and fresh grease is visible.
At the same time, inspect all the axle seals for damage (Fig-
ure 6-8). Vegetation wrapping around the axles can damage
the rubber lip of the seal, allowing dirt and water into the
outer cavity. Replace any damaged seals.
Figure 6-8. Outer Axle Flange
The second or inner grease fitting of the outer axle flange
supplies grease directly to the outer axle bearing. Since the
bearing is well sealed and packed with grease when manufac-
tured, it requires re-greasing only every 100 hours of opera-
tion or before the vehicle is taken out of service for any ex-
tended period. Use a pistol grip type grease gun to avoid
SECTION 6
dislocating the bearing seals due to excessive grease pres-
sure.
Do not use high pressure or excessive amounts of grease.
Damage to the bearing seals could result.

6.4.6 Idler Shaft Bearing Lubrication - All Models

The idler shaft bearing flanges are fitted with grease nipples.
These bearings should be greased with a small amount of Shell
Alvania No. 2 grease or equivalent at 250 hours of operation
or whenever major maintenance is performed on the vehicle.
The grease fittings become more accessible when the idler
chains are removed. Alternatively, ARGO Part# 658-16 Right
Angle Coupler, can be used to access these fittings (also sold
at automotive supply stores as a Right Angle Grease Coupler,
Thexton part no. 418).
Figure 6-9 Idler shaft bearing grease nipples

6.4.7 Inner Axle Bearing Lubrication

The inner axle flanges are equipped with a grease nipple.
Lubricate the bearings with a small amount of Shell Alvania
No. 2 grease or equivalent every 250 hours or before the ve-
hicle is taken out of service for any extended period. Only a
small amount of grease is required.
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