Page 10 Drop centre hydraulic engagement gearboxes Make PRM *Pleasure boat rating P .T.O. available on 280 - 1750, SAE B, 13-spline ** details for 1750SC/DC identical except - Get you home device fitted power rating is 24.6, (4.9:1 - 22.5) After market trolling valve and electric shift available on 280 - 1750 All PRM gearboxes except 150, 1500 & 1750 may be ordered for non-standard input rotation. All gearboxes may be used with either rotation propeller. Hign flow oil pump available on 1000 for engines with low idle speeds Made in England Installation parts available include:- Flywheel housings and adaptors, flywheel drive plates, oil coolers, shift cable connection kits, flexible couplings,shaft half couplings, C.V shafts and thrust bearings All gearboxes may be operated with single lever remote controls, and will accept Model 150 280 500 750 750 1000 1000 1500SC** 1500DC** REDUCTION (1.09) 1.22/1.56 RATIOS :1 1.50 1.46 (1.46) (1.53) 1.94 3.12 2.10 1.96 1.94 1.94 2.03 2.25 3.88 [2.57] [2.57] 2.45 4.50 2.82 2.94 [2.90] [2.90] 3.95 [2.86] 4.00 (3.00) (4.90) Weight W Kgs 21 48 68 72 80 86 93 260 300 Length J mm 216 293 314 314 314 290 290 513 513 Drop K mm 74 89 121 121 153 135 174 188 248 Depth C mm 122 117 121 155 140 127 162 200 180 Spigot F mm 88 50.8 63.5 63.5 63.5 88.5 88.5 SAE3 SAE1,2 Shaft G mm 75 95 89 89 89 76 76 60 60 Flange H ins 4 5 6 6 6 6 7 ¼ 7 ¼ 10 ½ Max Diesel HP/100* 2.1 3.9 6.4[6.2] (10.5)9.5[8.0] 8.0 (14.4)12.6[11.5] 11.5 21(18.9) 21(18.3) Max RPM 5000 4500 4500 4500 4500 3500 3500 3000 3000 Cooler size (min) 1 1 2 2 3 2 3 4 4 Lubricant Engine Oil PRM150 PRM280-1000