Pre Commissioning Checks for ID Fan

 EECC - THANE 

PRE-COMMISSIONING CHECKS FOR ID FAN

1. Check the the foundation foundation with with regards regards to to the general general assembl assembly y drawing. drawing. 2. Mainta Maintain in the the foundat foundation ion as as even as as possib possible le 3. Mark Mark the the cen cente terr lin lines es.. Description

Remarks and Measured alues

Static Parts 1. 2. 3. %.

!osit !osition ioning ing of the "nlet "nlet cone cone #ight #ighteni ening ng of fi$i fi$ing ng bolts bolts on on the duct ductss #ight #ighteni ening ng of the the fi$ing fi$ing of stati staticc parts. parts. Check alignm alignment ent of base frame frame with with precis precision ion level. level. #he #he  permissible deviation is &.&% mm' meter  (. Check the level) level) height and center center of bearing bearing pedastal. pedastal. *. Maintain Maintain the the center center a$is a$is of the the shaft shaft and casing casing as per per +, drawing. -. Check Check tightn tightness ess of Moto Motorr foundat foundation ion bolts bolts..

Rotor Assembly 1. nsure that inlet cone /s0 /s0 is placed placed along with the rotor  rotor  2. ,dust the therma thermall e$pansion e$pansion clearances clearances in free free bearing bearing 3. Check the alignm alignment ent of impeller impeller shaft shaft with precision precision level. #he permissible deviation is &.&% mm 'meter  %. Check Check the beari bearing ng alignm alignment ent /ref /ref vendor vendor manua manual0 l0 (. Check Check the the alignm alignment ent of fan fan motor motor coupl coupling ing.. *. Check the the tightness tightness of fi$ing fi$ing bolts bolts of impelle impellerr ' hub

Coupli! Ali!met 1. Check the height height level variation variation of couplin coupling g levels. levels. 2. Mainta Maintain in the gap gap between between coupl coupling ing halve halvess as per dimension 3. Check the level level and alignme alignment nt of motor with respect respect to the fan shaft %. Check the alignm alignment ent of motor motor with with respect respect to the the fan coupling.

!age 1 of 2

 EECC - THANE 

Pre Start C"ec#s 1. nsure that the "mpeller handling matches with the fan casing 2. Check the mounting of the bearing housings and electric motor  3. Check that the coupling is tightened properly %. Check that the foundation bolts are tightened properly (. Check that the connecting flanges between the fan and ducting are good) and  proper packing is provided *. Check that different components of the control system are correctly connected. -. Check that the inlet damper is fully closed. . Check the operation of fluid couplings /in case the fan is provided with fluid coupling 0 . Check that no foreign material has been left anywhere inside the fan. 1&. Check that no water stays in the bottom of the casing and inlet bo$. 11. Check that specified guards have been fitted 12. Check that the inspection door on the casing and inlet bo$ are correctly shut. 13. Check that rotor can run freely without rubbing with any static parts. 1%. Check that the bearings have been correctly filled with bearing lubricant. 1(. Check the direction of rotation of motor in decoupled condition and ensure that direction of rotation is correct. /"f re4uired carryout further checks as per recommendation of manufacturer'as per 5 6 M manual0

!age 2 of 2