HDF - Heavy Duty Flush (Burnt Glycol)

STEP 1.

1. Record water pump pressure and all temps.
2. Drain coolant.
3. Remove Surge/Day Tank Caps.
4. Install 1” ball valve on each side of block underneath rail.
5. Fill with HDF (Ready to Use) until overflow from Surge/Day Tank.
6. Run Unit 7 days.

STEP 2.

1. Power wash out Surge/Day Tank while full. Let particles overflow. (15 minutes)
2. Drain Flush via ball valve on each side of block underneath rail.
3. Re-fill with HDF (Ready to Use).
4. Run Unit 7 days.
5. Power wash out Surge/Day Tank while full. Let particles overflow. (15 minutes)
6. Drain Flush (dispose as you would old coolant)

STEP 3.

1. Shutdown/Remove Surge Tank Cap.
2. Power wash Surge Tank with STH - Surge Tank Hose (while still hot and full). 

Let particles overflow. (15-20 min)

1. Drain Flush via ball valve on each side of block underneath rail.

(dispose as you would old coolant)

1. Fill with deionized water until overflow from Surge/Day Tank.
2. Run Unit until up to temperature and thermostats open.
3. Continue to pump in deionized water until overflow at the top from Surge/Day Tank 

before opening ball valves. (2 x volume) overflow until clean.

1. Inspect water pump and replace thermostats.
2. Drain Unit / Fill with New Coolant*

*(Best Practice) Do not leave or run with water only. 

Fill with coolant mix and 3%  CRI – Corrosion Rust Inhibitor

HDF_SDS.PDF

All SDS