LO 10-4610-241-12 (ARMY)
TO 4OW4-13-51 (AIR FORCE)
Supersedes LO 10-4610-241-12, 15 September 1992
15 September 1997
WATER PURIFICATION UNIT, 600 GPH TRAILER MOUNTED,
FLATBED CARGO, 5 TON 4 WHEEL TANDEM ROWPU,
AND 600 GPH SKID MOUNTED MODELS
References: TM 10-4610-241-l0/TO 4OW4-13-41, TM l0-4610-241-24/TO 4OW4-13-42
REPORTING OF ERRORS
You can help improve this bulletin. If you find any mistakes or if you know of a way to improve the
procedures, please let us know. Mail your letter, DA Form 2028(Recommended Changes to
Publications and Blank Forms) or DA Form 2028-2 located in the back of this manual directly to
Commander, U. S. Tank-Automotive and Armaments Command, Attn:AMSTA-AC-NML, Rock Island,
IL 61299-7630. You may also submit your recommended changes by E-mail directly to
email@example.com, or fax number 309/782-0726/DSN 793-0726. A reply will be
finished directly to you. Instructions for sending an electronic 2028 may be found at the back of this
manual immediately preceding the hard copy 2028.
Approved for public release, distribution is unlimited.
This LO is for operator/crew (C) or unit (O) maintenance. Lube intervals (on-condition or hard time) are based
on normal operation. Lube more during constant use, and less during inactive periods. The task-hour specified is
the time you need to do all the services prescribed for a particular interval. Use correct grade of lubricant for
seasonal temperature expected.
For equipment under manufacturers warranty, hard time oil service intervals shall be followed. Intervals
shall be shortened if lubricants are known to be contaminated or if operation is under adverse conditions
(such as longer than usual operating hours, extended idling periods, extreme dust).
Chemical feed pump (all models) and R.O. pump oils (only on Models WPES-10, WPES-20 and WPES-30) must
be sampled at 100 hour intervals as prescribed by TB 43-0106. On-condition (OC) oil sample intervals shall be
applied unless changed by the Army Oil Analysis Program (AOAP) laboratory.
Ensure ROWPU is level before checking oil levels in chemical feed pump (on all models) and R.O. pump (only
on Models WPES-10, WPES-20 and WPES-30). Drain oils while they are warm.
Lubricate trailer immediately after fording, or as soon after unit movement permits. Dry equipment before
On the picture, a dashed line (--) means there are lubrication points on both sides of the equipment.
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