Cold Weather Starting
At very low temperatures, when the engine is difficult to start and operator experience so
indicates, follow the starting procedure outlined below:
Cold Weather Procedure
1. Disengage the pumps.
2. Wait for “Wait to Start” light to go off.
3. Start the engine as described above. ALLOW THE ENGINE TO WARM UP. This
is recommended so that optimum engine power is obtained at low speed for
the protection of the hydraulic system.
BE ALERT FOR SIGNS OF CAVITATION. The hydraulic oil provides
lubrication for the pumps. When to heavy or stiff, it will not flow fast
enough to meet pump demand and a vacuum or “cavitation” will be
created. A “screaming” noise indicates inadequate pump lubrication, and,
if allowed to continue for more than a short period, will result in serious
damage to the pumps.
4. If cavitation noise is noticed, the hydraulic oil must be warmed by use of a
reservoir immersion heater. When the reservoir is warm to the touch, the
starting procedure may be continued. Refer to the Operator’s Manual, pg.
160-163 for the recommended oil viscosity for the winter season.
5. Stop engine.
6. Re-engage pumps.
7. Restart engine. Be alert for signs of pump cavitation as described in (4) above.
Increase engine speed GRADUALLY, allowing sufficient time to warm the
system before commencing operation.
109REVISED:
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