3.3.3. Install the hydraulic head CMP. Install the hydraulic head CMP. Installing H head ! Assemble shims with an appropriate thickness that corresponds to the measurement of the bottom clearance (refer to attached drawing 3). ! Temporarily tighten the hexagon socket head bolts evenly in the order as shown below until the surfaces of H head and pump body contact with each other, and subsequently tighten to the specified torque in the same order. ! After assembling H head, check the top clearance again. ! After assembling H head, push the rack from governor side to check that the rack is returned with the force of rack auxiliary SP. !
When reassembling H head, be sure to replace the Assemble the FIC adjust shim inside the tappet. head packing with new one. Install the hydraulic head CMP. Install the hydraulic head CMP fastening bolt. While hand pressing the hydraulic head, temporarily tighten the tightening bolts. Then, tighten them with specified torque. Tighten the bolts in diagonal order, while checking the torque with torque meter. 34 Insert the two positioning pins. Be sure not to confuse packing front with rear surface. (Align them with holes on the body.) Important Tightening Torque : 18-22 N-m