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Sprocket Removal and Replacement 

The chain saw sprocket is connected to the shaft with a tapered bushing. To remove the sprocket remove the Cap 
Screws (Fig. 6, Item 3) and screw them into the Threaded Holes, tighten up to 36 inch pounds to push the Sprocket 
(Fig. 6, Item 1) off the Bushing (Fig. 6, Item 2). You may need to tap the Sprocket towards the motor with a hammer 
to assist in getting the Sprocket loose from the Bushing. Lightly drive a flat blade screwdriver into the slot of the 
Bushing. 

 

 

Pry between the Bushing and the Sprocket to get the Bushing off the shaft. Watch that the Drive Key (Fig. 6, item 4) 
does not get lost. 

To install the Sprocket, slide the Sprocket (Fig. 6, item 1) over the motor shaft, slide the Bushing (Fig. 6, item 2) onto 
the shaft with the Drive Key (Fig. 6, item 4) aligned. Position the sprocket groove offset towards the motor about the 
width of the bar groove with the Bushing just contacting the Sprocket. Insert the Cap Screws (Fig. 6, item 3) through 
the large hole in the Bushing and screw them into the threaded holes of the Sprocket. Torque the Cap Screws (Fig. 6, 
item 3) to 36 inch pounds. Check to make sure the sprocket groove is aligned with the bar groove. If the alignment is 
not correct, remove and replace the sprocket and bushing and adjust the position before tightening the cap screws. 

 

 

 

Fig. 6 

Summary of Contents for DH0614

Page 1: ...OPERATION AND PARTS MANUAL DH0614 21G24 Simple Saw System Information subject to change without notice...

Page 2: ...rsons working near this machine must wear eye protection and hearing protection Use extreme caution around the cutting chain It is sharp and may cause bodily harm or injury Petroleum products are used...

Page 3: ...allation 4 Hydraulic Connections 6 Chain Tension and Sharpening 7 Sprocket Removal and Replacement 8 Bar Oil Pump Adjustment 9 Operating Instruction 10 Parts and Service Information 10 Main Sub Assemb...

Page 4: ...es warranty This warranty does not cover normal wear from use damage from abuse or misuse damage from contamination damage from natural disasters fire damage or incorrect installation This warranty do...

Page 5: ...igure 3 can be changed as required for your installation Position the bar oil pump above the bar plate port when retracted and below the bar oil tank with the bar oil tank positioned so it is easy to...

Page 6: ...19 to 22 gallons per minute at 2000 psi from a fixed displacement hydraulic pump You must install the pressure relief valve between the hydraulic pump and the selector valve to keep from damaging the...

Page 7: ...g We do not recommend using quick disconnects but if you choose to use quick disconnects in the tank line first consult the manufacture to determine the correct size to keep the back pressure low enou...

Page 8: ...he shaft Watch that the Drive Key Fig 6 item 4 does not get lost To install the Sprocket slide the Sprocket Fig 6 item 1 over the motor shaft slide the Bushing Fig 6 item 2 onto the shaft with the Dri...

Page 9: ...e in Figure 7 Turning it clockwise reduces the speed oil is pumped and turning it counterclockwise increases the speed the oil comes out If you run the tank out of oil you may need to prime the pump T...

Page 10: ...ribed on page 7 The log being cut must be clamped prior to sawing Lowering the saw bar will allow the selector valve to shift starting the saw chain and pumping bar oil Returning the saw to the up sto...

Page 11: ...1 DH0144 BAR OIL PUMP ASSEMBLY 3 1 DH0152 BAR OIL TANK ASSEMBLY 4 1 VH0014 3 4 NPT 2000 PSI RELIEF VALVE 5 1 HH0822 12 JIC SWIVEL RUN TEE 6 1 HH0947 TUBE REDUCER FM JIC TO M JIC 892 12 4 7 1 DH0634 24...

Page 12: ...12 DH0636 SIMPLE SAW ASSEMBLY...

Page 13: ...13 DH0144 BAR OIL PUMP ASSEMBLY...

Page 14: ...14 DH0152 BAR OIL TANK ASSEMBLY...

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