OVERHAUL-TIMING BLOWER ROTORS (cont) - TM-55-1905-220-14-100259

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OVERHAUL-TIMING BLOWER ROTORS (cont)

TM-55-1905-220-14-10 Landing Craft Utility LCU 1671-1679 NSN 1905-01-009-1056 Manual

OVERHAUL-TIMING BLOWER ROTORS (cont)

TM 55-1905-220-14-10

5-8. BLOWER-MAINTENANCE INSTRUCTIONS (Continued).

LOCATION

ITEM

ACTION

REMARKS

OVERHAUL-TIMING BLOWER ROTORS (Cont)

g. After determining the amount one

rotor must be revolved to obtain the

proper clearance, add shims back of

the proper gear as shown below to

produce the desired result. When

more or less shims are required,

both gears must be removed from the

rotors. Placing a .003" shim in

back of a rotor gear will revolve

the rotor .001".

h. Install the required thickness of

shims back of the proper gear and

next to the bearing inner race and

install both gears. Recheck the

clearances between the rotor lobes.

Determine the minimum clearances

at points "A" and "B". Insert the

feeler gages, between the end

plates and the ends of the rotors.

This operation must be performed at

the ends of each lobe, making 12,-

measurements in all. See below for

the minimum clearances.

5-254