THUNDER TIGER Hammer S18 Instruction Manual page 16

Optional Gearing 齒比搭配
Additional gearing is available for your HAMMER S18 Monster Truck. Additional gearing allows you to match your engine and
transmission to your driving situation. Bigger gears on the clutch bell (or smaller slipper gears) will result in greater top speed,
but will have slower acceleration from a stop (see chart below). If you change the gearing you will need to reset the gear mesh:
1. Loosen (or tighten if engine was removed) the four engine mounting bolts located on the underside of the truck until you can
just slide the engine forward and backward.
2. Slide the engine up to the spur gear until the teeth on the clutch bell are meshed tightly with the teeth on the slipper gear.
3. Move the engine back a little bit (1/32" or 0.8mm). Check the mesh by holding the smaller gear with one hand and rocking the
bigger gear back and forth with the other. The big gear should rock back and forth slightly with little effort. A gear mesh that is
too tight will be noisy, have lower performance and could ruin the gears.
HAMMER S18 大腳車齒輪比可以依照您的需求選擇搭配。較大的離合器罩齒輪（或是搭配較小的大主齒輪），將會提高您愛車的尾
速，但是加速度卻會變弱（可參考下列附表）。若您有變更齒比的需求，您可參照附表建議重新搭配。
1. 將車底板上之引擎固定螺絲鬆脫，直到您可自主移動引擎即可。
2. 將引擎向上移動，直到離合器罩齒與大主齒齒輪緊密接合。
將引擎向下方移動一點間隙（約0.8mm），並徒手轉動兩個齒輪是否順暢轉動，來調整間隙。若是轉動時齒輪噪音過大表示，
齒輪搭配過緊，將會降低引擎性能表現
Clutch bell gear size
離合器罩齒輪規格
13T
PD8102
17T
PD8102
14T
PD8112
18T
PD8112
15T
PD8123
19T
PD8123
Slipper Gear size Final Reduction Final Reduction
1st Gear
大主齒規格
第一段齒輪終傳齒比
64T
17.25019
PD8058
60T
PD8058
52T
16.01803
PD8124
60T
PD8058
64T
14.95016
PD8058
60T
PD8058
2nd gear
第二段齒輪終傳齒比
12.36686
Better
Acceleration
加速性能較強
11.67982
Higher Top
Speed
尾速較快
11.06509