Allis-Chalmers 3500 MK II / SOOMKII 1.5 — Draining the Cooling System
Maintenance
For the Allis-Chalmers 3500 MK II / SOOMKII 1.5, from the Allis-Chalmers owner's manual.
Applies to: Allis-Chalmers 3500 MKII engine
Before you start
- When draining in freezing weather, make certain coolant flows freely and the system drains completely.
Procedure
- Place engine in level position for portable equipment.
- Disconnect power source to optional immersion heater before draining.
- For radiator systems, remove radiator cap, open radiator drain cock and cylinder block drain cock.
- Leave coolant filter shutoff valves open; remove spin-on filter and install new filter after draining.
- For heat exchanger systems, shut off raw water and open heat exchanger drain cock, vent cocks and engine coolant drain cocks.
- Open drain cocks of any optional equipment to drain it.
Full service-parts list: Allis-Chalmers 3500 MKII engine →
Source: Allis-Chalmers owner's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.