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pi888200 rev 3.12 service instructions for the d9 [800 series motors for use with seal kit 800888200 dimensions mm [in a to aid in reassembly of the motor make a v shaped set of lines from the endcover to the housing using either paint or a marker with the shaft facing down secure the motor in a vise by clamping on the housing flange 10 b loosen and remove nine bolts 22 holding the motor assembly together place an 11/64 x 2 ½ pin through the endcover 21 drain port and into the manifold note if the pin is not used the internal components of the endcover will fall out remove the endcover assembly c flip the endcover assembly over remove the 11/64 x 2 ½ pin from the endcover 21 drain port remove the manifold 16 pin 17 commutator 18 piston 19 and springs 20 from the endcover place the piston 19 on a flat clean surface with piston seals 8 9 facing up remove the piston seals from the piston 19 and discard d remove driver 15 rotor set 14 and wear plate 13 from the motor remove all seals from components and discard caution do not allow rolls to drop from rotor assembly when removing rotor assembly from motor remove seal 1 from housing and discard remove drive link 11 and spacer ring 12 from housing e to aid in the reassembly of the shaft sub-assembly make a v shaped set of line across the rear of the housing and the bearing locking nut on the shaft assembly using either paint or a marker remove the housing 10 from the vise and flip over f remove any shaft hardware using a press press the shaft assembly 10a out of the rear of the housing 10 remove the seal carrier insert 3 remove the dust seal 2 o-ring seal 4 backup shim 5 and quad seal 6 and discard all seals at this point all parts should be cleaned in an oil-based solvent and dried using compressed air for safety observe osha safety guidelines all new seals should be lightly coated in clean oil prior to installation g place new dust seal 2 into seal carrier insert 3 with the lip facing up place new o-ring seal 4 into outer groove of the seal carrier insert 3 insert back up shim 5 then quad seal 6 into seal carrier insert 3 with dust seal 2 facing down press seal carrier insert into housing bottom bore press the shaft assembly 10a into housing 10 lining up the v set of lines on the bottom of the housing and shaft assembly h insert drive link 11 into shaft assembly 10a and place bearing spacer 12 into housing 10 i if a v shaped set of lines was drawn on the motor prior to disassembly use them as a guide for reassembly to insure proper positioning of components j install the housing seal 1 in the groove on the housing 10 k install the wear plate 13 with the counter bore towards the housing 10 note remember to align the v l place body seals 7 in grooves in both sides of rotor set 14 place rotor set 14 onto wear plate 13 with i.d spline chamfer facing wear plate rotor set must be timed see figure 4 for correct rotor lobe orientation endcover sub-assembly m place the endcover 21 on a flat clean surface with cavity facing up place four springs 20 into holes in the bottom of the cavity n install the o.d and i.d piston seals 8 9 onto the piston 19 the seals are cone shaped the i.d of the outer seal and the o.d of the inner seal should be installed towards the piston the opposite edges should be coming out away from the piston see figure 3 for installation of the piston seals o install the piston 19 into the endcover 21 the two alignment pins in the piston 19 should be inserted into the two holes in the bottom of the endcover 21 p install the commutator 18 into the endcover 21 with the i.d splines facing up the commutator must be timed correctly there are two notches on the o.d of the commutator 18 one of the notches is aligned with a pin closer to the i.d of the commutator this notch is to be aligned with the small drilled hole on the i.d land of the endcover 21 see figures 1 and 2 for timing the commutator correctly q install the manifold dowel pin 17 into the endcover install the manifold 16 into the endcover with the large openings facing up and the slot on the o.d aligned with the dowel pin 17 white drive products inc · p.o box 1127 · hopkinsville ky 42241 · phone 270.885.1110 · fax 270.886.8462 1800264-9571 central hydraulics inc stocking distributor for white hydraulic motors www.cenhyd.com

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r install a 11/64 x 2 ½ pin or similar into the drain port of the endcover 21 and into the manifold 16 note if the pin is not used the internal components of the endcover will fall out the endcover contents may need to be compressed to be able to insert the pin or similar through the drain port and into the manifold s install the driver 15 into the rotor set 14 place the endcover 21 onto the rotor set 14 aligning the driver 15 into the commutator 18 caution make sure to visually align bolt holes before the driver is in the commutator if the commutator spins during installation the motor will run in the reverse direction t install nine assembly bolts 22 into endcover and pre-torque to 13,6 nm [10 ft lb final torque all bolts to 69,8 ± 7,5 nm [51.5 ± 5.5 ft lb forward direction timing reverse direction timing forward 800 series reverse 801 series piston seal orientation position for proper timing figure 1 commutator orientation figure 2 direction explanation figure 3 figure 4 22 20 8 18 16 7 21 9 19 17 15 14 23 6 4 2 12 7 11 13 1 2 3 4 5 6 7 8 9 10 10a 11 12 13 14 15 16 17 18 19 20 21 22 23 housing seal dust seal seal carrier insert o-ring seal backup shim quad seal body seal 2 large piston seal small piston seal hsg/shaft assembly housing hsg/shaft assembly shaft drive link bearing spacer wear plate rotor set driver manifold pin commutator piston piston springs endcover assembly bolts 9 shaft key contained in seal kit 800888200 10 10a 5 3 1 white drive products inc · p.o box 1127 · hopkinsville ky 42241 · phone 270.885.1110 · fax 270.886.8462 1800264-9571 central hydraulics inc stocking distributor for white hydraulic motors www.cenhyd.com

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