Advance acoustic Captor 4800B Mechanical Repair Service Manual

Advance acoustic Captor 4800B Mechanical Repair Service Manual Manual pdf 13 page image

FORM NO. 56043096 - Captor™ 4300B, 4800B - 11WHEEL DRIVE SYSTEMGEARBOX REMOVAL1 Follow the steps of the Wheel Drive Motor Removal section.2 Drain the gearbox oil see Gearbox Drain and Fill instructions.3 See Figure 1.3. Remove the (4) steering shaft cover screws and (6) (J) Floor Plate (Chain Cover) screws then remove both covers together.4 Loosen the 4 (K) Bolts that secure the chain idler sprockets assembly to the floor. Loosen the Lock Nut (L) on the idler tension adjustment boltwhich then will release the chain tension.5 See Figure 2.1. Remove the 4 (M) Bolts that fasten the Chain Cover Plate and Steering Plate to the Gearbox. Remove the Chain Cover Plateby rotating the Plate to slide over the motor bolt heads to access the Steering Chain Links.6 Remove both master links securing the steering chain at the Steering Plate (N) then remove the chain.7 Remove the (4) (G) Steering Clamps from the Steering Plate (N), then remove the Steering Plate by aligning the internal notches to clear themotor.8 Rotate the drive/steer tire so that it is 90 degrees (perpendicular to the frame) then block the front wheels.9 Remove the (6) (H) Gearbox Mounting Bolts. Note: Use an 18-mm socket.10 Safely jack up or lift the rear of the machine to remove the motor/gearbox assembly by carefully guiding it down through the bottom of the frameopening.WARNING!Never work under a machine without safety stands or blocks to support the machine.11 Rest the tire on the floor and tilt the top of the motor away from the wheel and roll out the opposite side. NOTE: The motor is heavy, block orstrap motor to assist when removing.Installation1 NOTE: Refer to the Gearbox Drain and Fill section.2 Raise the rear of the frame high enough to clear the Gearbox. Then position the gearbox assembly with the drive tire installed underneath themachine.3 Tilt and support the gearbox assembly into position at the chassis opening and slowly lower the machine to align the (6) threaded gearboxmounting holes with the (6) holes in the chassis.4 Fill Gearbox with oil see Gearbox Drain and Fill instructions.5 Apply loctite 242 (blue) to the threads of the (6) (H) Gear Box Mounting Bolts, then install and torque to 59 ft/lbs.GEARBOX DRAIN AND FILLGearbox (transmission) oil specificationType: SAE 80-90, API GL4 OR MIL L2105Qty: 2.8 qts. (2.7 L)1 See Figure 2.2. Remove the Oil Filler Plug (O) using a6mm Allen wrench.2 Remove the Oil Drain Plug (P) with the same Allenwrench.3 Collect the oil in a drain pan, this will take approximately5 minutes.4 Clean the magnet in the Drain Plug (P) and re-install theplug, torque to 16 ft/lbs.5 Re-fill the gearbox with the proper gear lube.6 NOTE: If the gearbox is in the machine, the wheel drivemotor will have to be removed to re-fill the gearbox(refer to the Wheel Drive Motor Removal section). If thegearbox is outside the machine you can re-fill throughthe Oil Filler Plug hole (O) using a funnel and hose 1/2”(13 mm) in diameter. Fill until the lube just begins tocome out through the filler hole.7 Re-install the Oil Filler Plug (O) and torque to 16 ft/lbs.FIGURE 2.2