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1. Charging
your coolant sump.
2. Coolant dilution.
3. Sump Maintenance.
1. Charging your coolant sump.
- DRAIN OLD COOLANT FROM SUMP:
Drain sump and all coolant lines. Take care to dispose of "old" coolant
according to all Federal, State and local laws.
- CLEAN SUMP:
BEST METHOD: This method will ensure proper cleanout of machine and is
recommended to be performed annually or bi-annually.
Fill sump with water. Add sump cleaner, NuGenTec
SuperGreen, at 5% by volume of
water. Add Bactericide, NuGenTec BugKIll,
at 8 oz per 40 gallon sump. Re-circulate for 30 to 120 minutes.
Flush system. Rinse 1 to 3 times, to ensure cleaner is removed from
system. Repeat if needed.
SIMPLE METHOD: This is a quick and dirty method and is not usually
recommended.
Fill sump with water. Re-circulate and flush system.
Repeat if needed.
- Re-FILL SUMP WITH FRESH COOLANT (do this as soon as possible, after
cleaning, to prevent rusting):
Add water first, then add coolant. See table below for Mixing chart:
Add this much coolant, in gallons, for every # of gallons listed below
|
% |
10 gallon sumps |
20 gallon sumps |
50 gallon sumps |
75 gallon sumps |
100 gallon sumps |
| 2% |
0.2 |
0.4 |
1.0 |
1.50 |
2 |
| 3% |
0.3 |
0.6 |
1.5 |
2.25 |
3 |
| 4% |
0.4 |
0.8 |
2.0 |
3.00 |
4 |
| 5% |
0.5 |
1.0 |
2.5 |
3.75 |
5 |
| 6% |
0.6 |
1.2 |
3.0 |
4.50 |
6 |
| 7% |
0.7 |
1.4 |
3.5 |
5.25 |
7 |
| 8% |
0.8 |
1.6 |
4.0 |
6.00 |
8 |
| 9% |
0.9 |
1.8 |
4.5 |
6.75 |
9 |
| 10% |
1.0 |
2.0 |
5.0 |
7.50 |
10 |
| 11% |
1.1 |
2.2 |
5.5 |
8.25 |
11 |
| 12% |
1.2 |
2.4 |
6.0 |
9.00 |
12 |
| 13% |
1.3 |
2.6 |
6.5 |
9.75 |
13 |
| 14% |
1.4 |
2.8 |
7.0 |
10.50 |
14 |
| 15% |
1.5 |
3.0 |
7.5 |
11.25 |
15 |
| 16% |
1.6 |
3.2 |
8.0 |
12.00 |
16 |
| 17% |
1.7 |
3.4 |
8.5 |
12.75 |
17 |
| 18% |
1.8 |
3.6 |
9.0 |
13.50 |
18 |
| 19% |
1.9 |
3.8 |
9.5 |
14.25 |
19 |
| 20% |
2.0 |
4.0 |
10.0 |
15.00 |
20 |
Mix coolant into solution well, especially with soluble oils.
Re-circulate the coolant for at least 15 minutes.
2. Coolant dilution:
- Dilute with water (water first) at these typical concentrations:
10 to 1 Sawing, tapping, threading
20 to 1 Turning, milling, most CNC operations
30 to 1 grinding
- Flood machine with fresh coolant to prevent rusting.
3. Sump Maintenance: (see more
detail here: Coolant Management)
- Make sure to have enough coolant in sump, never run concentration too low.
- Remove floating tramp oils and hydraulic oils regularly. This will
greatly reduce rancidity "odor" problems.
- Keep out foreign Matter: Dirt, debris, trash, metal fines, etc.
- Check coolant concentration on a regular basis.
- Add fresh coolant with water to make up for evaporation losses. Even if
just at lower concentrations.
- Aerate Coolant, this helps keep bacterial levels lower. Air bubblers
and re-circulating pumps do a good job with this.
- For longer sump life use higher purity water. Sumps build up hard
water with constant additions from evaporation. This is more important
in larger central systems then in individual sump systems.
- Make sure you are using the correct coolant for you equipment and
operations.
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