Jinma 224

Chinese Tractor Articles

Jinma Model 6 Chipper Assembly

I bought a Jinma Chipper, Model 6, in a crate and assembled it in the fall of 2003. These instructions chronicle the steps I took to put it together, so insert your favorite disclaimer here. It was raining while I did the assembly, so I didn't get good step by step pictures, however, the mechanically inclined should not have any difficulty.

I bought the unit from Coastal Tractor. It took about 120 days to get here, fairly standard for items ordered from China. I live close enough that I picked it up myself.

Materials required: Metric Socket Set, Metric Open-Ended wrench set, grease gun, working 3 pt. lift.

Click on the pictures below for full size images.

Lift Pin detail

Step 1: Assemble the base and lift pins. The unit comes with the base in 4 pieces, two lift arms and two lift pins. The base plate with the cut out goes on the PTO side of the unit. This unit is heavy and not balanced. Most of the weight sits on the rear edge of the base. I had it on blocking a couple of feet from the ground to attach the base. I braced it with the top link of my 3pt. hitch while working on it. Go slow and be careful.

Discharge Chute Detail

Step 4: Attach the discharge chute mechanism. There are two parts in this assembly. The chute and the support bracket. The chute is held on with 4 small bolts to the top of the flywheel casing. The support bracket is attached to the shroud as well, but is not mounted to the chute. I didn't like this, so I used some heavy duty zip ties to secure chute to the bracket. The top of the chute has a flap that can direct the chips up or down, however the direction is fixed.

Hopper Detail

Step 2: Attach the hopper chute assembly. The hopper chute attaches with 4 bolts connecting the tabs of the chute to the main unit. A future modification for me will be to replace the top bolts with a hinge mechanism, and replace the bottom with a wing nut and slotted tab so that I can fold the hopper out of the way when it's not in use.

PTO Shaft

Step 5: Attach the PTO shaft and check for fit with your tractor. On mine, the top link is almost too short as I have to extend it fully and have only 5 or 6 threads engaged. The PTO shaft did not need to be modified. I did replace the PTO cover chain with a much beefier chain.

Feed Roller Release Lever

Step 3: Attach the feed roller relaese lever. It is held in place with a single bolt on top of the hopper. It has a small loop that goes over a lever arm mounted to a small shorud that sits between the hopper and the flywheel assembly. The lever has a connecting rod to a lever that sticks up out of the feed roller drive assembly. When the lever is pushed, the feed roller drive shaft is disengaged. See Servicing for more details.

Looking into the Business End

Step 6: Serivce the Chipper BEFORE connecting it to your tractor and powering it up. :-)