1901-1953 Indian Motorcycle – Parts – Accessories

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  4. 1942 Service Shots
  5. 135 – Instructions For Removing Rear Spring Assembly From Late Model Frames/Remove Springs From Slipper Cylinder/Assemble The Spring Frame Unit/Cancellation of 441 Clutch Conversion


Right or left side.

Remove upper sleeve lock screw (10-32) located just ahead of fender anchor lug on inside of spring frame cluster at
top. Slide sleeve down.

Remove one inch Hex head slipper spindle bolts with alemite fittings attached. Top and bottom of cylinder.

Loosen pinch bolt on lower frame bracket.

Screw out lower cup with sleeve attached (right thread)

Using a piece of tube 2″ long 7/8 center hole, place tube on lower end of slipper spindle, using spindle bolt.
Tighten the bolt to compress the spring in the cylinder. This allows the spindle to clear the top loop of the frame
bracket. Remove the complete assembly from the frame.


Remove lock ring on top end of cylinder nut. Compress spindle in cylinder (using arbor press or large vice)
to release spring tension on cylinder cap. Remove cap (right thread).

Shaft and spring assembly may now be removed from slipper cylinder.

The short top springs are recoil springs. The long bottom springs are load springs.

Spindle shaft must work free in slipper cylinder bushings.

The taper end of spindle is top.

The 7/16 shoulder on end of spindle is bottom.

Remove the lock ring (C) on the top end of the cylinder.

Compress the top spring (G) by placing the cylinder in an arbor press or large vice. This compresses spring (G) so
that cap (D) may be unscrewed.

With the cylinder held securely in the vice or arbor press, remove cap (D) from the cylinder. The shaft and spring
assembly may now be removed, Use extreme caution in releasing the cylinder from the vice or arbor press because the springs are under very heavy pressure.

The top spring (G) is known as the recoil spring and is the shortest of the two. The bottom spring (H) is known as the
load spring and is the longer of the two.

Spindle shaft (F) should work freely in the slipper cylinder bushings.

The taper end is the “top”.

The 7/16 shoulder end of the shaft is the “bottom”•

(refer to illustration)

Grease the springs.

Place the longest spring (H) with the large end toward the bottom into the slipper cylinder.

Take the slipper spindle shaft (F) and with the end with the 7/16 shoulder toward the bottom, slip it into the cylinder
thru the spring.

Place the short spring (G) into the cylinder with the large end toward the “top”.

Put cylinder cap (D) on the shaft. Place the entire unit in an arbor press or large vice and compress the springs in the
cylinder so that cap (D) can be screwed into place. Screw cap (D) in until the slots in the cap line up with the cylinder
casing (E).

Replace the lock ring.

Place the top chrome cover in position.


Grease springs before assembling.

Place long spring (large end towards the bottom) in slipper cylinder.

Place shoulder end of spindle in slipper cylinder. Place short spring in slipper cylinder with large end of spring
at top so will accept cylinder cap. Compress spring by placing arbor press or large vice. Screw cylinder and
spring cap nut down into cylinder until slot in cap and hole in cylinder line up. Replace spring lock ring in
cylinder cap. Place top sleeve on slipper cylinder.

Compress spring by using spindle nut and tube sleeve tool on lower end of spindle shaft. Place assembly in frame.
Place taper end of slipper spindle in top bracket of frame and assemble bolt with lock washer and alemite fitting.
Remove lower spindle bolt and tube tool.

Slide upper sleeve into top cup on frame lining up hole for lock screw. Set screw into hole in sleeve to hold it in
place, but not through into cylinder.

Screw lower cup with sleeve attached into lower frame lug (do not tighten). Now tighten top spindle bolt with
alemite fitting attached.

When tightening lower cup into frame lug, tighten up to the shoulder of lower end of spindle (the end of spindle
should be about flush with end of cup nut).

You may feel the cup strike spindle shoulder when screwing in place . Back out slightly and lock pinch bolt in frame
lug. Then tighten top spindle bolt and lock washer into place.

Keep well greased during service with alemite grease.


We wish to advise that the special 441 clutch conversion offer covered by Service Shots #119, November 7, 1940,
will not be honored by this Company after the date appearing at the upper right hand corner of this “Service Shot”

C. E.. Raymond
Service Manager

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