Figure 2-21. Hoisting boom removal and installation (Sheet 2 of 2)

Figure 2-21. Hoisting boom - removal and installation (Sheet 1 of 2)

Figure 2-22. Main winch and spade assembly - removal and installation (Sheet 1 of 2)

TM-9-2350-256-34-1 Recovery Vehicle Full-Tracked: Medium M88A1 (NSN 2350-00-122-6826) Manual
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TM 9-2350-256-34-1 Figure 2-21. Hoisting boom removal and installation (Sheet 2 of 2). b . I n s t a l l a t i o n . I n s t a l l t h e h o i s t i n g b o o m assembly in reverse order of removal. NOTE If boot (fig. 2-21. views B and C) is re- placed. use part number 11673351 and adhere joining strips at installation using adhesive type II, specification MMM- A-121 or MMM-A-1617. 2 - 2 4 . 1 . H o i s t i n g B o o m R e m o v a l WARNING Removal of hoisting boom when both the main engine and auxiliary power unit engine are inoperable is a safety h a z a r d a n d m a y c a u s e i n j u r y t o personnel. a. Removal. Remove boom in accordance with figure 2-21. ( 1 ) A f t e r p o w e r p l a n t s a r e o p e r a b l e , s t a r t hydraulic system and exercise the boom cylinders through their entire stroke to purge all air from cylinders. b. Installation. Install hoisting boom assembly in reverse order of removal. 2 - 2 4 . 2 . E l e v a t i n g H o i s t i n g B o o m Deleted 2 - 2 5 . M a i n W i n c h a n d S p a d e A s s e m b l y NOTE a. Load testing of main winch is man- d a t o r y p r i o r t o u s e . u n d e r a n y o f t h e following conditions: (1) When new. (2) Following any repairs. disassembly and assembly, adjustments, or parts replacement. (3) When modifications are made that c o u l d a f f e c t t h e s t r e n g t h o r l i f t i n g capabilities of the vehicle. b. Load testing will be accomplished by support maintenance activities. c. Refer to TM 9-2350-256-34-2 for de- tailed step-by-step procedure. NOTE I f y o u r v e h i c l e h a s m a i n w i n c h a s s e m b l y 8 7 3 9 0 1 0 - 1 1 o r 8 7 3 9 0 1 0 - 1 , s e n d w i n c h a s s e m b l y t o d e p o t maintenance f o r r e m o v a l o f a n t i - c h a t t e r k i t . a. Removal Prior to removing the main winch and spade, remove subfloor plates 2. 3, 4 (fig. 2-3) and open doors of subfloor plates 3, 21 (fig. 2-3). Remove the winch cable (para 2-22). Remove the main winch and spade assembly as shown in figure 2-22. TA171782 Change 8 2-47

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