Thwaites SPRITE NIMBUS, Manual

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INTRODUCTION:
The following details within this section deal with the important aspects of axle
servicing and it is essential that the servicing procedure for the relevant axle be
adhered to.
The correct servicing as shown by illustration and text, will ensure correct running
and a longer service life for the axle.
Wherever possible all service repairs should be carried out through the offices of
the dumper manufacturers. If for any purpose this is not possible, these service
instructions are issued as a guide.
It should be noted that an hypoid axle is dependent for its efficient functioning on
the correct settings for the component parts. It is not considered that certain items
can be serviced successfully in the field and it is recommended that the service
instructions outlined in this manual are completed under workshop conditions using
correct equipment as recommended.
Certain components should always be renewed when servicing axles, these are
stated in the text, however, any component which is found to be damaged must also
be replaced.
NOTES ON LUBRICATION:
Lubrication of hypoid gears:
Hypoid gears need special Hypoid Lubricants. It is absolutely essential to use an
Extreme Pressure HYPOID lubricant of approved type in the SAE 90 classification
and conforming to the requirements of S.S. Specification MIL-L-2105B.
Thwaites Engineering Co., Ltd., do not approve the addition of any proprietory
compounds to the oils recommended, as all these oils have been individually
compounded from specified base oils and additives in definite proportions, and any
addition to these lubricants could result in dangerous dilution, or gear failure.
AXLE OIL RECOMMENDED - MOBIL HD 90 replacing GX 90.
AXLE OIL CAPACITY - 4 pints.
AXLE MANUFACTURERS CODE: - 4HA.
AXLE WHEEL NUT TIGHTNESS: 150 lbs.f.ft.
AXLE SHAFT END-FLOAT: 0.003" to 0.008"
3(a)