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Victoria University Antarctic Research Expedition Science and Logistics Reports 1976-77: VUWAE 21

NZARP 17, Snowtric

NZARP 17, Snowtric

Up to 21.10 Made new engine cowling and windscreen. Connected petrol pump correctly. Fitted several new drive protection lugs and retensioned tracks.
29.10 Remaining leaf on ski spring snapped. Temporary repairs made since no spares at Scott Base.page 15
3.11 Replaced ski and leaf spring with OMC ski and spring.
4.11 Removed and checked both rear axles. Replaced worn sprocket on left hand axle. Oil seal faulty but no spares left. Refitted and retensioned tracks. Topped up oil and greased machine.
10.11 Left hand drive shaft failure by inner sprocket. Replaced with new shaft, sprockets, housing, bearing and oil seal.
17.11 Replaced OMC ski with snowtric ski.
30.11 Checked tracks. Fitted four new drive protection lugs on left hand track. Replaced bolt on inner left tensioner to give more slack on left hand track which was badly worn. Retension tracks. Oil and grease.
8.12 Further slackened left hand track in effort to reduce wear. Replaced burred bolts on inner left tensioner, shearing one off in process so that track was only held by one bolt there.
10.12 Problems with tracks sliding off rear axle sprockets at drive slots (mainly left hand track) due to steep sidling necessary. Tightened both tracks.

The following fuel consumption and mileage figures are only approximate since most distances had to be estimated due to an inaccurate odometer.

NZARP 16 21.10 - 28.11 286 miles using 36 gallons: 7.9 mpg
2.1 - 12.1 90 miles using 9 gallons: 10 mpg
Overall distance covered: 752 km
Overall petrol consumption: 3 km.litre−1. (8.4 mpg)
NZARP 17 21.10 - 14.12 409 km using 141 litres i.e.
2.9 km.litre−1.
(8.2 mpg)