background image

Model 

207474 

10.  Loosely install the pecking 

cup 

Model 

217-527 

One 

at 

time,  place 

gland 

UHMWPE  v-packing 

leather 

UHMWPE  v-packing 

leather  v-pecking 

gland 

and a washer 

on the piston 

Be 

v-packing 

UHMWPE v-packing 

sure 

the 

lips 

of 

the v-packings face 

up 

on the piston. 

Model 

207474 

v-packing 

four  leather  v-packings 

  a  time,  place  a  female  gland 

one 

male gland 

and a 

on 

on the piston. 

piston 

Be 

sure 

the 

of 

the v-packings 

up 

12. 

Place  the  ball 

on  the  piston,  and  screw  the 

torquing to 

150-175 

ft-lb 

(203-237 

Install the 

piston  assembly  into 

displacement  rod 

ball stop pin 

and cotter pins 

in the proper 

holes 

displacement rod if they were removed 

(Model 

Refer to the  Check Valve 

Adjustment below. 

13. 

Lubricate the displacement rod again,  end guide 

it 

through  the  bottom  of  the  pump  housing  and 

through 

the 

throat packings. 

14. 

Install the ball 

ball guide 

retainer 

and 

ball stop  pin 

in the intake valve housing. 

Be 

sure the pin is 

in the correct set of holes. Refer to 

the  Check Valve Adjustment below.  Install the 

on  the  housing.  Screw  the  assembly 

firmly into the pump housing. 

15. 

Screw the displacement rod 

onto the 

jam nut 

Align the 

tie rods 

the pump hous- 

ing rod 

Install the cotter pin 

Tighten the 

ing 

and install the 

tie rod locknuts loosely. 

16. 

the pump, and run 

it 

at its 

lowest speed possi- 

ble,  about 

psi 

(2.8 

bar) while you tighten the tie 

Adjust  the 

tie 

rod  locknuts,  if  necessary.  to 

rod locknuts 

evenly to 

35-50 

ft-lb 

eliminate binding. 

17. 

Tighten  the  packing  nut just  enough  to  prevent 
with the complete pump. Fill the wet-cup helf full 

leakage,  but no tighter. 

Use 

the wrench  supplied 

NOTE: 

If the ground wire was disconnected before 

servicing,  be  sure  to  reconnect 

it 

before 

operating the  pump,  and check to 

be 

sure 

the entire system is properly grounded. 

Check Valve 
The intake valve housing 

is set for high flow rate or 

For 

high viscosity fluids. To set the valve for lighter viscosity 

fluid or  lower flow  rate,  to minimize surging 

at pump 

stroke change over,  move the ball 

pin 

to 

lower set of holes, decreasing the check ball travel. The 

piston check valve in this pump 

is 

not adjustable. See 

Fig 

3. 

The piston 

and intake valve housing 

are set for 

For 

Displacement 

Pump 

217-527 

high flow rete or high viscosity fluids. 

To 

set the valves 

for lighter viscosity fluid or lower flow rate, 

to 

minimize 

surging 

at 

pump stroke change over, move the ball stop 

pins 

(21 

or 

to 

lower 

of holes,  decreasing the 

check ball 

See  Fig 

3. 

Fig 

PTFE

Содержание C Series

Страница 1: ...07 474 Series C Standard Severe Duty Displacement Pumps have an abrasion and corrosion resistant displacement rod and sleeva Refer to Technical Date for wetted parts information INDEX Warnings 2 Service 4 Parts Drawing and List 6 How To Order Replacement Pert5 6 Technical Data Back Page Warranty Back Page 307 728 SUPERSEDES B Rev C GRACO INC P O BOX 1441 MINNEAPOLIS MN 55440 1444 COPYRIGHT 1985 GR...

Страница 2: ...up spray and reduces the risk of fluid injeciionwhen the tip is not installed Check diffuser operation regularly Follow the Pressure Relief Procedure at the right and then remove the spray tip Aim the gun into a grounded metal pail holding the gun firmly to the pail Using the lowest possiblepressure trigger the gun If the fluid emit ted is not diffused into an irregularstream replacethe diffuser i...

Страница 3: ...spensing valve and the pail during flushing to reducethe risk of fluid injection injury static sparking and splashing HOSE SAFETY High pressure fluid in the hoses can be very dangerous If the hose develops a leak split or rupturedue to any kind of wear damage or misuse the high pressurespray emitted from it can cause a fluid injection injury or other serious bodily injury or properly damage ALL FL...

Страница 4: ...nting and clamp it in a vise before removing the displacement pump 3 Loosen the packing nut 2 Pull up on the displace pin F and remove it Remove the three tie rod ment rod 221 far enough to grasp the lower cotter locknuts IG Pull the displacement pump down 4 Push down on the displacement rod 22 until the piston 3 flats clear the pump housing 11 Pullthe pump housing piston and displacement rod asse...

Страница 5: ...placement rod 22 onto the connect jam nut K Align the tie rods with the pump hous ing rod J Install the cotter pin F Tighten the ing 1 and install the tie rod locknuts loosely 16 St8 t the pump and run it at its lowestspeed possi ble about 4 0 psi 2 8 bar while you tighten the tie Adjust the tie rod locknuts if necessary to rod locknuts GIevenly to 35 50 ft lb 47 68 Nml eliminate binding 17 Tighte...

Страница 6: ...SKET 1 WASHER steel 1 1 GLAND mala V PACKING leather 2 4 V PACKING UHMW polyethylene GLAND female 6 PIN straight 2 ROD displacement 1 TAG warning not shown 1 1 Suppliedin repair kit 2 20 395 Recommended tool box spare parts Keep on hand to reduce down time Extra warnings and tags ere supplied et no charge 220 395Pecking Repair Kit Must be purchased separately Ref No Qty 8 2 9 1 1 5 1 7 1 1 8 2 8 1...

Страница 7: ... 1 Supplied in repair kit 207 W Wecommended tool box spare parts Keep on hand to reduce down time Extra warningsand tags are supplied at no charge 207 968 Pecking Repair Kit Must be purchased separately Ref NO ow 15 9 1 17 1 2 18 8 20 19 2 2 HOW TO ORDER REPLACEMENT PARTS 1 To be sure you recaivethe correct replacement parts kit or accessories always give all of the information requested in the ch...

Страница 8: ...ies equip ment or materials not supplied by Graco or the improper design manufacture installation operation or maintenance of structures ac cessories equipment or materials not supplied by Graco This warranty is conditionedupon the prepaid returnof the equipment claimed to be defective for examination by Graco to verify the claimed defect If the claimed defect is verified Gram will repair or repla...

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