Hull Unit Lubrication - Simrad SH90 - REFERENCE MANUAL REV A Reference Manual

Simrad SH90
206

Hull unit lubrication

The hull unit is fully lubricated when it is installed on the vessel.
During normal conditions, the lubricants applied will last for a
long period of time. Additional lubrication of the hull unit must
only take place when it is required.
Observe the following procedure. The numbers refer to the
lubrication points on the illustration.
A Pressure release plug (grease nipple on rear side)
B Air bleeding plug
Inspect the ball bearings on the top of the hoist/lower
1
screw (1). Grease only if required using normal ball
bearing grease.
2 Inspect the hoisting spindle (2). Lubricate only if
required using Tonna Slideway Oils S68 or similar
grade lubricant. If too much lubricant is applied to the
hoisting spindle, you may experience a lot of spillage
when it rotates in high speed.
3 Topping up the shaft sleeve through the grease nipple
is only required if the shaft is dry from lubrication, or
if water tends to force its way up along the shaft.
If you detect a water leakage, or if the transducer shaft
is dry, you may add extra grease.
• Open the pressure release plug (A).
• Add extra grease into the shaft sleeve through the
grease nipple
Do not add excessive amounts of grease. The total
capacity of the shaft sleeve is less than four kilos.
Use one of these grease types, or an equivalent type
with similar characteristics:
– Esso Cazar K1
– Shell Rhodina EP2
– Shell Alvina EP2
WARNING
When you top up the shaft sleeve with oil, you
must open the pressure release plug to avoid
damage to the shaft bearings.
323775/A