HUMMER H1: STEP BY STEP ™ Stage 21 Beginning to assemble the chassis Your parts Front chassis plate Rear chassis plate 4 × 16mm countersunk screws × 4 Tools and Phillips screwdriver Rear bulkhead assembly (Stage 16) materials...
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HUMMER H1: STEP BY STEP ™ 1 1 1 2 2 2 Rear chassis plate – back Make a note of which chassis plate is which, by laying them next to each other on your work surface. The front plate is the smaller of the two.
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HUMMER H1: STEP BY STEP ™ 7 7 7 8 8 8 T i p ! You will notice that the screws do not sit ush with the plate. This is because other parts will be added in later stages. Do not overtighten the screws as this may deform the holes and create Tighten with a screwdriver, but...
HUMMER H1: STEP BY STEP ™ Stage 22 Assembling the main chassis Your parts Middle chassis plate 3 × 10mm countersunk screws × 11 (1 is a spare) 3mm ange nuts × 11 (1 is a spare) Front chassis (Stage 21) Phillips screwdriver Tools and Rear bulkhead (Stage 21)
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HUMMER H1: STEP BY STEP ™ Both edges are angled upwards. 1 1 1 Front Back Make a note of which side of the middle chassis is which, as they are di erent to one another. Some of the holes on the back of the plate are countersunk, and the edges of the front are angled upwards.
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HUMMER H1: STEP BY STEP ™ Turn the assembly so that Once the rst ange nut is 6 6 6 7 7 7 the front of the middle tightened by hand, line up chassis is facing upwards. the next screw from the Holding the screw head back side of the chassis.
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HUMMER H1: STEP BY STEP ™ The screw will go right through both holes so that its Rotate the chassis and tighten a ange nut by hand onto the countersunk head sits ush with the surface. At this stage, the tip of the screw, as you did in Stage 6.
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HUMMER H1: STEP BY STEP ™ Insert one of the 4 × 10mm binding-head screws into the hole on Tighten with a screwdriver. the torque rod (see arrow). Repeat Steps 22 and 23 with the other Turn the assembly upside down, and Insert a 3 ×...
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HUMMER H1: STEP BY STEP ™ Stage 23 Beginning the front di erential Your parts Di erential case 6mm O-ring Di erential cup joint 6 × 12mm shim 1510 ball bearing Di erential bevel (20T) Bevel gears (10T) × 2 2.5 ×...
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HUMMER H1: STEP BY STEP ™ Fitting the ball bearing to the di erential case 1 1 1 2 2 2 Place the 1510 ball bearing onto the cylindrical segment of the Using both thumbs, push down on the ball bearing evenly, di erential case, making sure it is on straight.
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HUMMER H1: STEP BY STEP ™ 7 7 7 8 8 8 Part the tweezers slightly, and gently push the O-ring down into Next, place the 6 × 12mm shim over the shaft so that it rests the groove at the base of the joint. at the base, covering the O-ring.
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HUMMER H1: STEP BY STEP ™ Press the bevel into place with your nger. Slide each of the 10T bevels onto the bevel shaft, so that they are facing each other. With the 10T bevels together as shown in the photo, place the Once in place, slide the two 10T bevels apart as far as they will bevel shaft into the di erential case.
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HUMMER H1: STEP BY STEP ™ Stage 24 Completing the front di erential Your parts Di erential ring gear (43T) 6 × 12mm shim Di erential cap 2.5 × 10.3mm metal pin Di erential cup joint Bevel gear (20T) 1510 ball bearing 2.6 ×...
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HUMMER H1: STEP BY STEP ™ Fitting the bearing onto the di erential case 1 1 1 2 2 2 Place the 1510 ball bearing over the projection on the Press the bearing rmly into position on the projection. Make di erential case.
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HUMMER H1: STEP BY STEP ™ 7 7 7 8 8 8 Insert the 2.5 × 10.3mm pin into the hole in the joint, just above Place the 6 × 12mm shim over the joint and push it down to the shim.
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HUMMER H1: STEP BY STEP ™ Locate the four screw Place the two assemblies holes on both the together, aligning the di erential case and cap screw holes of both. assemblies. Place the 43T gear over Align the four screw holes the end of the joint.
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HUMMER H1: STEP BY STEP ™ Stage 25 Assembling the front bulkhead Your parts Front shock stay Driveshaft (with 13T bevel pre- tted) Lower bulkhead 1680 ball bearings × 2 Upper bulkhead 4 × 25mm binding-head screws × 2 5 × 4mm set screw 4 ×...
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HUMMER H1: STEP BY STEP ™ 1 1 1 2 2 2 Front Back Upper Lower Make a note of the shape and orientation of the upper and Place the di erential you assembled in Stage 24 carefully into lower bulkheads. The inside of the lower bulkhead has a at the lower bulkhead, with the ring gear on the right side of the surface, marked in the photo.
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HUMMER H1: STEP BY STEP ™ Apply some grease to the Gently rotate the 9 9 9 ring and bevel gears. driveshaft, so that the gears turn, spreading the grease evenly. Place the upper bulkhead Make sure that the two onto the lower, making parts are sitting ush with sure their orientation is...
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HUMMER H1: STEP BY STEP ™ First make sure that the Tighten with the Allen key. at D-cut surface of the When the set screw won't driveshaft inside the joint tighten any more, loosen is still facing up, then it by one half-turn. insert the set screw into the hole in the cup joint.
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HUMMER H1: STEP BY STEP ™ Insert the other 4 × 25mm Tighten, again not too binding-head screw into rmly. the other hole. Rotate the assembly and Tighten with a screwdriver, place a 4 × 10mm binding- but as with the previous head screw into one of the few steps, do not tighten holes on the back of the...
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