Filter
Top Products
30
UMP SUBMACHINE GUN
Operator Cleaning
• The functional performance of any mechanical device varies greatly
on the quality and frequency of the maintenance performed on that
item. Firearms are no exception. The operator spends most of the
time with the weapon and therefore has the best opportunity to
perform the necessary upkeep required to insure top performance at
all times.
• Metal components of new UMPs are coated in a thick, oily
preservative that should be removed prior to the weapon being used
or fired. This preservative oil, applied by HK personnel prior to the
shipment of the weapons from the manufacturing facility in Germany,
guarantees that the weapons and accessories will remain corrosion-
free during storage and transport. However, this preservative fluid is
not considered a lubricant and therefore should be removed and
replaced with a high-quality weapons lubricant whenever possible.
This preservative fluid attracts debris and dirt and possesses little or
no lubrication qualities.
• Cleaning the UMP, especially with its polymer construction, need not
take hours and a great deal of effort. With the right equipment a very
fouled UMP should be able to be thoroughly cleaned in less than 10
minutes. A solvent tank where the parts can be immersed in and
scrubbed will save a great deal of time and effort as will compressed
air to blow off the fouling and solvent or to spread the lubricant. There
are companies, such as Safety-Kleen, that sell or rent such solvent
tanks and will exchange the solvent on a regular basis at a
reasonable price.
NOTE: If using Ultra Sonic-type cleaning machines, do not immense
the painted portion of the UMP, specifically the color pictogram firing
mode markings on the lower receiver. Ultra sonic cleaning will
remove the markings!
• If such a set up is not available to you, a complete weapons cleaning
kit specially designed for the HK UMP will reduce your cleaning time
and make the job easier.
• Any quality weapons solvent or oil can be used to clean the UMP.
Basically, if it’s safe to put your bare hands into it won’t hurt the
surfaces of the weapon. Break-Free (CLP), Ballistol, Militec or any
of the other brand-name cleaners or lubricants specifically designed
for use with weapons will work well on the UMP.
• At HK we recommend two types of operator cleaning. Normal
cleaning and Major cleaning.