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CYLINDER GLAND SERVICE DIAGRAM

 

CYLINDER PISTON SERVICE DIAGRAM

 

Page 17

 

To Install Seals:

 

 

1.  Thoroughly clean piston sealing surface of all           

 

foreign ma;er.

 

 

2.  Heat new seals in hydraulic oil to 160

° 

F.

 

 

Never use a direct flame or heated water on 

 

hydraulic seals.

 

 

3.  Remove seals from oil, wipe dry and install in 

 

piston grooves as shown in illustra on at 

leG.  

 

Be sure seals have completely seated 

in 

 

piston grooves before allowed to cool. 

 

 

4.  Replace piston on cylinder shaG and 
assemble 

 

cylinder when seals have 

cooled to room 

 

temperature.

 

To remove seals

 

 

Carefully cut across each seal with a sharp knife.  Be sure 
not to scratch sealing surfaces of aluminum piston.  If a 
sharp knife is not available.  An electric soldering gun or 
hot iron may be used to melt throughout seals

 

All gland seals shown with a sec on removed 

to facilitate correct installa on.

 

Note:  To install rod wiper and EZ-squeeze seal, 
fold similar to shape shown below, slip into 
gland bore and locate each in its respec ve 
groove.  Tools are used to fold seals, take care 
not to damage sealing surfaces.

 

Important!  Be sure all gland and piston seals have been installed 

 

correctly before cylinder is assembled!

 

O-RING 

EZ SQUEEZE SEAL 

ROD WIPER 

BACK UP 

GLAND 

SECTION VIEW 

ASSEMBLED GLAND 

SECTION VIEW 

ASSEMBLED PISTON 

EZ SQUEEZE SEAL 

PISTON 

EZ SQUEEZE SEAL 

O-RING 

ROD WIPER 

BACK UP 

GLAND 

EZ SQUEEZE SEAL 

O-RING 

O-RING 

EZ SQUEEZE  SEAL 

PISTON 

EZ SQUEEZE SEAL 

Summary of Contents for MATERIAL'S GRAPPLE

Page 1: ...MANUAL IS GIVEN TO THE PURCHASER FOR FUTURE REFERENCE Koyker Manufacturing Co P O Box 409 Lennox SD 57039 Phone 1 800 456 1107 Email koyker koykermfg com Website koykermfg com OWNERS MANUAL Manual No...

Page 2: ...and Maintenance 8 6 Grapple Fork Parts Diagram 9 6 Grapple Fork Parts Schedule 10 7 Grapple Fork Parts Diagram 11 7 Grapple Fork Parts Schedule 12 Cylinder Informa on 13 2 1 2 Cylinder Service Kit 14...

Page 3: ...ntenance and high performance opera ng capaci es all at a low price make the Grapple Fork one of the most e cient loaders ever With proper care and handling it will provide many years of dependable se...

Page 4: ...e alert to the possibility of personal injury or death DANGER Indicates an imminently hazardous situa on that if not avoided will result in death or serious injury WARNING Indicates a poten ally hazar...

Page 5: ...fore opera ng the loader Be certain all bystanders are clear of the machine and opera on area prior to opera on It may be necessary to add wheel ballast or rear weights as recommended by the tractor m...

Page 6: ...rious injury or death Never adjust or perform maintenance on the loader or tractor with the unit in mo on or without power source locked out Never get under bucket or liG arms or reach through the liG...

Page 7: ...hydraulic oil under pressure can penetrate the skin Never use any part of your body to check for hydraulic leaks Use cardboard when checking for leaks See Fig 5 1 Relieve hydraulic pressure before dis...

Page 8: ...SAFETY DECALS Page 6...

Page 9: ...grapple and roll a achment back Raise loader only enough to permit maneuvering Before moving carefully check for hazards and or obstruc ons Never liG o center WARNING Be certain material cannot fall o...

Page 10: ...fully collapsed so that the rod will not be exposed to the elements or damaged Be certain hydraulic system remains sealed at all mes to prevent contamina on Check and maintain an adequate uid level in...

Page 11: ...KOYKER 6 MATERIALS GRAPPLE PARTS DIAGRAM Page 9...

Page 12: ...x 2 1 4 6 13 640066 HH Cap Screw 1 2 x 3 6 14 640080 Carriage Bolt 5 8 x 2 4 15 640097 HH Cap Screw 3 4 x 2 8 16 640157 Lockwasher 1 2 6 17 640159 Lockwasher 5 8 4 18 640162 Lockwasher 3 4 8 19 64013...

Page 13: ...KOYKER 7 MATERIALS GRAPPLE PARTS DIAGRAM Page 11...

Page 14: ...x 2 1 4 6 13 640066 HH Cap Screw 1 2 x 3 6 14 640080 Carriage Bolt 5 8 x 2 4 15 640097 HH Cap Screw 3 4 x 2 8 16 640157 Lockwasher 1 2 6 17 640159 Lockwasher 5 8 4 18 640162 Lockwasher 3 4 8 19 64013...

Page 15: ...lways pick up the seal by its outer member 4 Inspect each seal lip carefully for nicks scratches and dirt at me of installa on If dirty use a soG clean cloth and carefully wipe o seal DO NOT wipe seal...

Page 16: ...p Ring 640381 1 each 1 1 2 EZ Squeeze Seal 640383 1 each 1 1 2 Rod Wiper 640386 1 each 1 Locknut 661017 KIT NO 663318 Complete assembled 2 1 2 Cylinder Piston with all seals Consists of 1 each 2 1 2 A...

Page 17: ...CYLINDER PARTS LIST BUCKET CYLINDER Part No 672454 Key Part No Descrip on Quan ty 1 672455 Tube Weldment 1 2 661017 Locknut 1 3 651458 Piston Assembly 1 4 640301 O Ring Seal 1 5 651457 Gland Assembly...

Page 18: ...HYDRAULIC CYLINDER PARTS DIAGRAM Page 16 3 5 4 1 6 2...

Page 19: ...not to scratch sealing surfaces of aluminum piston If a sharp knife is not available An electric soldering gun or hot iron may be used to melt throughout seals All gland seals shown with a sec on remo...

Page 20: ...AND CUSTOMER S REMEDIES To the extent permitted by law neither Koyker the Dealer nor any person or company affiliated with either of them makes any warranties representations conditions or promises ex...

Page 21: ...925 675 1150 850 M27 950 700 1200 875 1350 1000 1700 1250 M30 1300 950 1650 1200 1850 1350 2300 1700 M33 1750 1300 2200 1650 2500 1850 3150 2350 M36 2250 1650 2850 2100 3200 2350 4050 3000 SAE Recomme...

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