Notes On Hecu Bracket Assembly; Notes On Hecu And Bracket Assembly Installation; Other Notes - Lifan 620 Maintenance Manual

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2. Notes on HECU bracket assembly

(1) As installation error may occur for the frictional resistance of buffer pad when tightening (3)
bolts, lubricant not affecting physical property of buffer pad is preferred.
(2) For easy operation, (3) bolts can be inserted into the buffer pad on bracket and then to HECU.
(3) Make sure the tightening torque of (3) bolts is 20N·m with a special tool, torque wrench, as
shown in Fig. 3-10.
Fig. 3-10

3. Notes on HECU and bracket assembly installation

(1) Install brake pipe and bracket part to HECU and then install HECU to vehicle body with bolt
special for vehicle body fastness.
(2) Make sure the tightening torque of bolt special for vehicle body fastness is 23N·m with a
special tool or torque wrench.
(3) Make sure again the pipelines of master pump and wheel slave cylinder are installed correctly
(master pump: MCP and MCS; wheel slave cylinder: FR, FL, RR and RL).
(4) Tighten the loose brake pipe with a specified torque (140N·m) by a special tool or torque
wrench.

4. Other notes

(1) Use diagnostic instrument to find out fault reason before repair.
(2) Wrap off spare part only before installation.
(3) Use original part only.
(4) Pay attention to cleanliness. Only use cloth except tweed.
(5) Clean the surface with cleanser without mineral oil before removal.
(6) Do not use compressed air or move the vehicle when system is opened.
(7) Block the hydraulic pressure outlets with plugs as soon as possible after removal of ABS
assembly.
(8) Remove other parts hindering operation.
(9) Use DOT#4 brake fluid.
(10) Soak the seal component with brake fluid, not with engine oil or brake unguent.
(11) Check for leakage of connectors of all hydraulic pipes.
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