Troy-Bilt 31AH7FP4B66 Storm Tracker™ 2890 Snow Blower

OPERATOR’S MANUAL - Page 27

For 31AH7FP4B66.

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27
SERVICE AND MAINTENANCE
Service
NOTE: If equipped with cordless battery start, remove battery
before performing service. See Installing/Removing The Battery
Pack on page 18.
CONTINUOUS TRACKS
The snow blower is equipped with an auto-tensioner on both the
left and right sides. The system is designed to maintain constant
tension on both tracks. However, if the snow blower fails to
propel itself because the track wheel is “jumping” drive lugs,
the tracks are too loose and are in need of adjustment. See an
authorized Service Dealer to have the tracks properly adjusted.
(Figure 76).
Track Wheel
Auto-tensioner
Drive Lugs
Figure 76
AUGER BELT REPLACEMENT
To remove and replace auger belt, proceed as follows:
1. Allow engine to run until it is out of fuel. Do not attempt to
drain fuel from engine. Remove safety key or disconnect
spark plug wire.
2. Remove plastic belt cover on front of engine by removing two
self-tapping screws (a) (Figure 77).
a
a
Figure 77
NOTE: On models equipped with the LED light bar on top of
the auger housing, make sure to unplug the wire harness
before removing the belt cover (Figure 78).
Figure 74
NOTE: When lubricating hex shaft, be careful not to get any
lubricant on aluminum drive plate or rubber friction wheel.
Doing so will affect the drive system. Wipe off any excess or
spilled lubricant.
AUGER SHAFT
At least once a season, remove shear pins (a) and cotter pins
(b) from auger shaft(s). Spray lubricant inside shaft and around
spacers and flange bearings found at either end of shaft(s)
(Figure 75).
NOTE: Three Stage
Augers Shown
a
a
a
b
b
b
Figure 75
IMPORTANT: On 3-stage models, there is an additional shear
pin in the rear accelerator.
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