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Installation 

10

3A0096B

Hydraulic-Powered Pumps

Reference numbers and letters in parentheses in 
the text refer to numbers and letters in the illustra-
tions.

F

IG

. 3, page 11, shows a typical installation of an 

hydraulic-powered pump. It is only a guide. Contact 
your Graco distributor for actual system designs.

Be sure all accessories, including hydraulic lines 
and fluid lines, are adequately sized and pres-
sure-rated to meet system requirements.

Use only electrically conductive hoses. Fluid hoses 
must have spring guards on both ends.

Always plug the hydraulic inlets, outlets and lines when 
disconnecting them for any reason to avoid introducing 
dirt and other contaminants into the system.

Be sure that your hydraulic power supply is equipped 
with a suction filter to the hydraulic pump and a system 
return line filter of 10 micron size. Carefully follow the 
manufacturer's recommendations on reservoir and filter 
cleaning and periodic changes of hydraulic fluid.

NOTE:

 Hydraulic fluid is exhausted from differential 

hydraulic motors only on the upstroke of the operating 
cycle. The oil return line must have at least twice the 
flow capacity as the oil supply line. Otherwise, back 
pressure on the hydraulic motor piston will slow down 
the motor and the fluid displacement pump, resulting in 
a loss of pump performance.

On the hydraulic oil supply line (D), install a shutoff valve 
(E) to isolate the system for servicing; a fluid pressure 
gauge (J) to monitor hydraulic oil pressure to the motor 
and avoid overpressurizing the motor or displacement 
pump; a pressure- and temperature-compensated flow 
control valve (H) to prevent the motor from running too 
fast; a pressure reducing valve (K) with a drain line (M) 
running directly into the hydraulic return line (T); and an 
accumulator (L) to reduce the hammering effect caused 
by the motor reversing direction.

On the hydraulic return line (T), install a shutoff valve (S) 
for isolating the motor for servicing.

NOTICE

The Hydraulic Power Supply must be kept clean at all 
times to avoid damage to the motor and hydraulic 
power supply.

Blow out hydraulic lines with air and flush thoroughly 
before connection to the motor.

Plug hydraulic inlets, outlets, and line ends when dis-
connecting them for any reason.

Summary of Contents for L200CM

Page 1: ...tant Safety Instructions Read all warnings and instructions in this manual Save these instructions ti14639a Package with NXT Air Motor and L500CM Displacement Pump See page 3 for model information inc...

Page 2: ...Packages 16 258753 Hydraulic Powered Ink Package 17 Dimensions 18 Technical Data 19 Graco Standard Warranty 20 Graco Information 20 Related Manuals Component Manuals in English Manual Description 312...

Page 3: ...500 cc 100 0 7 7 0 1400 9 7 97 258745 A 14 1 Air 500 cc 100 0 7 7 0 1400 9 7 97 258746 A 14 1 Air 500 cc 100 0 7 7 0 1400 9 7 97 258747 A 23 1 Air 200 cc 100 0 7 7 0 2300 15 9 159 258748 A 23 1 Air 2...

Page 4: ...PARTS HAZARD Moving parts can pinch or amputate fingers and other body parts Keep clear of moving parts Do not operate equipment with protective guards or covers removed Pressurized equipment can star...

Page 5: ...s away from traffic areas sharp edges moving parts and hot surfaces Do not kink or over bend hoses or use hoses to pull equipment Keep children and animals away from work area Comply with all applicab...

Page 6: ...Warnings 6 3A0096B...

Page 7: ...llow your local code Object being sprayed follow your local code Solvent pails used when flushing follow local code Use only conductive metal pails placed on a grounded surface Do not place the pail o...

Page 8: ...ine drop to drain off moisture Air shutoff relief valve M isolates the air line accessories for servicing Locate upstream from all other air line accessories DataTrak see the NXT air motor manual 3112...

Page 9: ...rain Valve not supplied L Air Filter not supplied M Air Shutoff Relief Valve for accessories not supplied N Pump Bleed Valve P Wet Cup R Wet Cup Drain Fitting if used T DataTrak Module standard module...

Page 10: ...hydraulic motors only on the upstroke of the operating cycle The oil return line must have at least twice the flow capacity as the oil supply line Otherwise back pressure on the hydraulic motor pisto...

Page 11: ...tlet H Flow Control Valve J Hydraulic Pressure Gauge K Pressure Reducing Valve L Accumulator M Drain Line N Pump Bleed Valve see FIG 6 on page 15 P Wet Cup R Wet Cup Drain Fitting if used see FIG 5 on...

Page 12: ...an be installed in place of the covered fitting if desired Wet Cup Drain Fitting As supplied the side port of the wet cup is plugged To install a drain tube remove the plug and install the sup plied 9...

Page 13: ...Now clear the nozzle or hose Prime Flush NOTE The pump is tested with lightweight oil which is left in to protect the pump parts If the fluid you are using may be contaminated by the oil flush it out...

Page 14: ...ic power supply b Open the flow control valve H all the way c Adjust the pressure reducing valve K until you get the desired fluid pressure Run the pump until all air is purged from the fluid lines d...

Page 15: ...w Pressure Relief Procedure page 13 3 Always flush the pump before the fluid dries on the displacement rod See Prime Flush on page 13 To reduce the risk of fluid injection do not use your hand or fing...

Page 16: ...CM Displacement Pump 258748 A P23MCM N22LT0 NXT Air Motor L200CM Displacement Pump 258749 A P23RCM N22LR0 NXT Air Motor L200CM Displacement Pump 258750 A P26LCM N65LN0 NXT Air Motor L500CM Displacemen...

Page 17: ...hex hd 3 8 16 x 1 5 in 38 mm long 4 4 276025 LUG 4 5 184086 GASKET PTFE 1 6 208390 BALL VALVE 1 4 npt mbe 1 7 237569 WIRE ground 1 8 n a FITTING 90 1 2 in 13 mm ID tube 1 9 100139 PLUG pipe 1 8 npt 1...

Page 18: ...4 mm mounting holes for 1 2 in 13 mm diameter bolts D D Table 1 Pump Package Dimensions Pressure Ratio xx 1 Motor Displacement PumpVolume cc per cycle A in mm B in mm C in mm D in mm Weight lbs kg 14...

Page 19: ...ump manual 312375 Maximum pump speed Do not exceed maximum recommended speed of fluid pump to prevent premature pump wear 60 cpm Wetted parts Refer to Check Mate Displacement Pump manual 312375 Ink Pu...

Page 20: ...anship repairs will be made at a reasonable charge which charges may include the costs of parts labor and transportation THIS WARRANTY IS EXCLUSIVE AND IS IN LIEU OF ANY OTHER WARRANTIES EXPRESS OR IM...

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