Howden wrv screw compressor

Hi guys i,ve been asked to inspect thrust bearings and change shaft seal ,and i don,t know what thread and the length of jacking bolts are and seal puller threads on howden wrv screws and i be greatful for any info , i have the manual but not the tool kit sizes or threads, thankyou

Hi, Ghaz :)

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Originally Posted by GHAZ

Hi guys i,ve been asked to inspect thrust bearings and change shaft seal ,and i don,t know what thread and the length of jacking bolts are and seal puller threads on howden wrv screws and i be greatful for any info , i have the manual but not the tool kit sizes or threads, thankyou

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Which type of WRV is in question? Sounds like 163 size? Which manual you have?

Best regards, Josip :)

Ghaz,
If you have a manual the thread sizes should be in torque table for each bolt size & its location.

The newer machines are a mix of metric & imperial , so its a guessing game.

What vintage is it ?

its a 204 the manual i have is an installation one with thrust settings

Ghaz,


Newer compressors as follows

1 metre lenths of 6,8,10,12,16 mm threaded rod with approx 6 nuts , washers.

Thrust bearings inner races secured by plate & 3 bolts

Thrust housing gland plate secured by 3 bolts & locking wire.

Pay particular attention to torque settingas it must be correct.

Older compressors

Same as above but 1/4 ,5/16/,3/8", 1/2", 5/8 UNC

Thrust bearings inner races secured by locknut & washer

Thankyou Ranger1