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Congratulations on having selected the finest airless sprayer
available in the world. Speeflo piston pumps are tireless
workhorses - so tough they are virtually indestructible, even
under the most severe service. Speeflo designs and builds
equipment with superior quality and reliability. Equipment that
will last for years with minimal maintenance and downtime. This
equipment will make you money year after year. We thank you
for your purchase and welcome you to our large and growing
family of Speeflo users.
The unique ability of this PowrTwin 5500DI to operate with
either gas or electric power provides you with the flexibility to
work indoors or outside where no electricity is available.
Hydraulic drive makes possible the longest stroke and slowest
cycling pumps in the industry which translates into low
maintenance and longer life. Electric units operate quietly with
no motor starting and stopping.
The PowrTwin 5500DI is equipped with Speeflo's exclusive and
patented Severe Service 500™ fluid pump. This technology will
give you significantly longer rod, cylinder, and packing life than
any other sprayer built in the world. This double ball piston
pump employs a dependable and durable time-tested design.
All pumps use an exclusive thick hard chrome plating on rod
and cylinder parts. This patented plating process is harder than
nitralloy, stainless steel, or hard chrome used by any other paint
pump manufacturer and much more abrasion resistant. Highly
polished parts reduce friction, extend packing life, and avoid
damage from corrosion and abrasion. More than 100,000 of
these pumps are in operation around the world.

PowrTwin 5500DI offers other cost saving features:

• Freeze-proof pressure control
• Choice of power — gas, electric, or both
• Tungsten carbide valve seats
• Self-adjusting packings
• Exclusive hand-tight swivel foot valve
• Large capacity inline paint filter
• "Floating Ball" pressure bleed valve

You have made an excellent choice. We know you will be
pleased with your new PowrTwin 5500DI. Thanks again for
selecting Speeflo. We appreciate your business.

PowrTwin 5500DI

Table of Contents

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Safety Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–7
Operating Components . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Fueling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Color Change / Clean Out / Flushing . . . . . . . . . . . . . . . . 11
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13–15

Airless Spraying . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Spray Patterns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Hydraulic Motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Fluid Pumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Parts Lists, Drawings, and Service Instructions . . . . 16–28

Main Assembly — Gas Models . . . . . . . . . . . . . . . . . . . . 16
Power Convertokits . . . . . . . . . . . . . . . . . . . . . . . 17, 18, 19
Cart Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Hydraulic System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Hydraulic Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22–24
Fluid Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24–25
Inlet Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Outlet Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . 26–28

Accessories & Service Kits . . . . . . . . . . . . . . . . . . . . . . . 29
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

WARNING:

The Engine Exhaust

from this product contains chemicals
known to the State of California to
cause cancer, birth defects, or other
reproductive harm.

U.S. Patents: 3,936,002; 4,220,286;
4,457,472; 4,508,268; 4,494,697;
4,500,119; 4,626,004; 4,611,758;
4,744,571; 4,728,213; 4,768,932;
4,755,638; 4,768,929; 4,840,543;
4,908,538; 5,074,467; 5,425,506