Specifications

96 5975 Series MSD Troubleshooting and Maintenance Manual
4 General Maintenance
To Check and Add Foreline Pump Oil
Standard foreline pump only
Materials needed
• Foreline pump oil (6040-0621)
• Funnel (9301-6461)
• Hex key, 5-mm, to remove drain plug (8710-1838)
• Screwdriver, flat-blade, to remove top fill cap
Procedure
1 Examine the oil level window (Figure 7).
Note the two lines on the pump left of the window. The oil level should be
between the lines. The foreline pump oil should be almost clear. If the oil
level is near or below the lower line, follow steps 2 through 6 to add foreline
pump oil.
If your MSD is nearing its scheduled time for replacement of the foreline pump
oil, replace the oil instead of adding oil. If the oil is dark or cloudy, replace it.
See “To Drain the Foreline Pump” on page 98 for instructions about replacing
the foreline pump oil.
2 Vent the MSD.
3 Remove the foreline pump fill cap.
4 Add pump fluid until the oil level in the window is near, but not above, the
upper line.
WARNING
The foreline pump can cause burns if touched when operating. It has a safety shield
to prevent the user from touching it.

WARNING
Never add oil while the foreline pump is on.