13
Differential
1. Place one of the 10x15mm bearings (110) on the bearing mounts on the diff gear case (18) and the diff gear case cover (12).
2. Install the outdrives (10) through the diff gear case and the gear cover, and install the spring pins (11) into the spring pin holes.
3. Align the keyed section of the large planetary gears (13) on the spring pins that are now installed in the outdrives.
4. Center the diff cross pin B (19) through the opening in the diff cross pin A (15) and install one small planetary gear (14) onto each end of both diff
cross pins.
5. Place the planetary gear and diff shaft assembly into the diff gear case.
6. Place a small amount of gear grease on the planetary gears that were installed in the large diff half. Rotate the gears to spread the grease evenly,
there should be enough to evenly coat each tooth of all the gears, add or remove grease as needed.
7. Install the diff gear case cover on to the diff gear case and secure it with the four 2x6mm fl at heads screws (X).
8. Install one dogbone spring (22) into each open end of the outdrives.
22
10
10
X
X
X
X
110
110
11
11
19
15
14
14
14
14
Keyed
Section
13
13
12
18
Spring
Pin Hole
Spring
Pin Hole
Bearing
Mount
22
G
G
G
P
P
P
20
21
7
96
108
108
108
108
116
83
17
Differential
89
D
Gearbox
Note: When installing the bearings, make sure they are fully seated. If the bearings are not
fully seated, the gearbox halves may not properly fi t together or may cause binding.
1. Install a 5x10mm bearing (108) into the upper hole of the left gearbox half (20).
2. Install the top shaft (83) into the 5x10mm bearing that was just installed into the left gearbox half.
3. Install a 5x10mm bearing (108) into each side of the idler gear (17).
4. Install the idler gear shaft (89) into the idler gear bearings.
5. Install the idler gear into the left gearbox half.
6. Install the assembled differential into the bottom hole in the left gearbox half.
7. Install the two gearbox halves together. Make sure they seat together properly.
8. Secure the two halves together with the 3x12mm round head screw (D).
9. Install the 2x10mm spring pin (116) into the top shaft.
10. Install the gearbox dust cover (7) onto the right-side gear box half (21).
11. Install the motor plate (96) on the side of the gearbox and attach it with the three 3x25mm round
head screws (G) and 3mm spring washers (P).
