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SANY Crawler Hydraulic Excavator SY215CLC (CUMMINS QSB6.7 engine). Shop Manual - page 37

Disassembly and Assembly

SY215C

8-100

17. Remove the air conditioner unit (23).

★

Also disconnect the two hoses connect-
ing to the bottom of the air conditioner
when removing the air conditioner unit.

8.24.2 Installation

●

Installation is to be performed in the re-
verse order of removal.

★

Keep the hoses free from contamination by
dirt, dust or water while installing the return
hose of the air conditioner.

★

Make sure that the O-ring seal is present
in the connection before connecting a hose
of the air conditioner.

★

Make sure that the O-ring seals are free
from any damage or deformation.

★

Apply compressor oil (ND8#) to the
threads of the parts connected with the
refrigerant lines. Tighten the line con-
nections with a double-end spanner.

Screw (hose clamp):

8.83~14.7 N·m {0.9~1.5 kgf·m}

Bolt (pressure plate):

13.5±1.2 N·m {1.38±0.12 kgf·m}

●

Refrigerant charging

Charge refrigerant (HFC-134a) into the air
condition return lines with tool (S).

ZX215T-1006201

Disassembly and Assembly

SY215C

8-101

8.25

Counterweight AS - Remove and Install

8.25.1 Removal

1. Remove the cover (1) from the counter-

weight. Install eyebolts to the counter-
weight. Hold the counterweight.

2. Remove the four bolts (2).

3. Lift the counterweight levelly with wire rope

or chain hoist.

★

Be careful not to damage the engine,
radiator or cooler.

Counterweight assembly:

3901 kg

ZX225-1106004

ZX225-1106005

Wire rope

ZX225-1106006

Disassembly and Assembly

SY215C

8-102

8.25.2 Installation

●

Installation is to be performed in the re-
verse order of removal.

Threads (mounting bolt - counter-

weight):

Thread adhesive (Tonson 1277)

Mounting bolt (counterweight):

1,180~1,470 N·m {120~150 kgf·m}

★

Counterweight Installation and adjustment

1) Move the counterweight with a crane to

a suitable position on the frame.

2) Push the counterweight and install the

bolts. Adjustment is to be made accord-
ing to the following speci

cation.

●

Clearance with swivel:

10±5 mm(L&R)

●

Clearance with bodywork door:

10±5 mm(L&R)

●

Step difference from swivel in left to
right direction

b: max. 5 mm

●

Step difference from bodywork door in
left to right direction

a: 10±4

●

Step difference from bodywork top cov-
er in upper to lower direction

c: max. 5 mm

Door

Counterweight

Swivel

Unit: mm

b=0±5

a=10±4

c=0±5

ZX215-1006205

Disassembly and Assembly

SY215C

8-103

8.26 Cab AS - Remove and Install

8.26.1 Removal

Disconnect first the cable connecting to

the negative (-) post of the battery.

1. Remove the

oor mat (1).

2. Remove the fuse box (2) and storage box

(3).

3. Remove outer covering (4).

4. Remove the air conditioner cover (5).

ZX215T-1006206

ZX215T-1006001

Disassembly and Assembly

SY215C

8-104

5. Disconnect the left wire harness (6),

monitor harness connector (7) and window
washer harness (8).

6. Remove the right side air duct (9).

7. Remove external air

lter (10).

7]’

ZXT225-1006216

ZXT335-1006999

8. Disconnect the external air duct (11).

ZX215T-1006210

Disassembly and Assembly

SY215C

8-105

9. Remove the storage box on the armrest

(12).

10. Remove the radio connector (13).

11. Remove the radio wire harness (14).

ZX215T-1006211

ZX215T-1006212

12. Remove the window washer reservoir

(15).

ZX215T-1006213

Disassembly and Assembly

SY215C

8-106

13. Remove the window washer pipe (16).

14. Remove the decor cover (17).

ZX215T-1006214

ZX215T-1006215

15. Remove the four mounting nuts (18) and

the

ve mounting bolts (19).

ZXT335-1006995

Disassembly and Assembly

SY215C

8-107

8.26.2 Installation

●

Installation is to be performed in the re-
verse order of removal.

Bolt: 200 N·m {20.4 kgf·m}

Nut: 210 N·m {21.4 kgf·m}

16. Lift the cab assembly (20) for removal.

Cab assembly: 633 kg

Disassembly and Assembly

SY215C

8-108

8.27 Cab Window Glass – Disassemble and Assemble

10 11

ZX225-1006226

1-  Right window glass
2-  Front window glass
3-  Lower front glass
4-  Cab door window glass (upper)
5-  Cab door window glass (lower)
6-  Cab door window glass (upper)
7-  Left side rear window glass
8-  Rear window glass
9-  Roof window glass
10-  Rubber sealing strip
11-  Center adjusting seal
12-  Front window assembly (Glass and frame)

★

Cab window glasses (1), (2), (5), (7) and (9)
are adhered to the window frame.

★

When replacing front window glass (2),
disassemble front window assembly (12).
(If the cab is install with a front window
assembly, do not only replace the front
window glass.)

★

For detailed information, see “Front
Window Assembly - Disassembly and
Assembly”.

Disassembly and Assembly

SY215C

8-109

8.27.1 Removal

Be careful with sharp edges that may cut

your fingers when handling broken or
cracked window glasses. Put a piece of
adhesive film (or adhesive tapes ) onto
the broken or cracked window glass to
prevent possible personal injury before
you proceed. Remove all glass fragments.

1. Removal of glass (3)

Glass (3) is hold in place by sealing strips.
Pull it upward carefully to remove it.

2. Removal of glass (4) and (6)

1) Remove the sealing strip from the

frame of the cab door.

2) Push the glass outward carefully from

inside of the cab and remove glass (4)
and (6) together with the frame.

3) Remove glass (4) and (6) from the

frame with a screw driver.

ZX225-1006229

Sealing

Frame

ZX225-1006227

ZX225-1006228

Disassembly and Assembly

SY215C

8-110

ZX225-1006230

Rubber retainer side

Glass

Retainer

Rubber retainer

Cab side

Cab

ZX225-1006231

ZX225-1006232

3. Removal of glass (8)

1) Remove the retainer from the groove

on the rubber with an ordinary screw
driver.

2) Put a thin bamboo chip inside part A of

the retaining rubber and detach the re-
tainer along the edge.

3) Pat the glass from inside of the cab

and remove it. This job may require two
people.

4. Removal of glass (1), (2), (5), (7) and (9).

Disassembly and Assembly

SY215C

8-111

ZX225-1006233

Adhesive

Glass

Cab

Drill

ZX225-1006234

Piano string
(or steel wire)

ZX225-1006235

Cab

Glass

(Outside of cab)

(Inside of cab)

Adhesive

1) Remove the resin board, decor strip

and retainer along the edge of the
glass.

2) Punch a hole through the adhesive with

a drill (or a cutter) as illustrated.

3) Pull a piece of piano string (or steel

wire) through the hole as illustrated.

4) Fix both ends of the piano string onto

two screw drivers. Pull the wire back
and forth in order to cut the adhesive
and detach the glass from the cab. This
job may require 2-3 people.

●

Run the string along the center of the
adhesive. The string may break when
it becomes very hot. Use different sec-
tions of the string while cutting the ad-
hesive.

Disassembly and Assembly

SY215C

8-112

8.27.2 Installation

●

Reverse the disassembling sequence
when installing glasses (3), (4), (6) and
(8). Follow the procedures below to install
glasses (1), (2), (5), (7) and (9).

1. Clean the remaining adhesive and rubber

on cab frame (contact surface) with a knife
or scraper (5).

★

Remove the remaining adhesive and
rubber so that they will not affect the
application of new adhesive. Do not
scrape the original paint on the surface.
(Scraping of paint reduces the perfor-
mance of the adhesive.)

2. Clean the grease, dust and dirt on the

cab (8) and the glass (9) with unleaded
gasoline.

★

Contaminant on the contact surface
reduces the performance of adhesive.

★

Clean the black part on the back of the
glass.

★

After cleaning, dry the glass for at least
5 minutes.

[5]

ZXT225-1006236

ZXT225-1006237

ZXT225-1006238

Disassembly and Assembly

SY215C

8-113

3. Priming coat (10)

★

Priming paint expires 4 months after
production. Do not use expired paint.

★

Use the paint within 2 hours after it is
unsealed.

★

Use the paint within 24 hours even
if it is sealed again immediately after
unsealing. (Dispose the paint 24 hours
after it is unsealed)

1) Make sure the adhesive paint and glass

priming paint are well agitated before
application.

★

If the priming paint is stored in a
refrigerator, keep it under ambient
temperature for at least half a day
before agitation.

(If the paint is unsealed immediately
after it is taken out of a refrigerator,
water will condense on it.)

2) Always wash a used brush (11) with

unleaded gasoline before using it.

★

Check the brush for contaminants
after it has been washed.

★

Prepare two brushes for priming
paint, one for painted surface and
the other for glass surface.

3) Apply priming paint (for painted sur-

face) evenly onto the surface where
sealing rubber is to be adhered and
where adhesive agent is to be applied
(on the cab (8)).

Priming paint (for painted sur-

face): Sunrise MSI Primer 24

★

Do not apply primer more than
twice; otherwise, the performance
of the primer will be reduced.

★

Applying location: Cover the whole
area of (a). Dimension of (a): 25mm

ZX225-1006239

Old adhesive edge
on cab side

Cab

ZXT225-1006240

ZX225-1006241

Disassembly and Assembly

SY215C

8-114

★

Besides the above locations, apply
primer also onto the right window
glass and the cab door lower win-
dow glass.

●

Additional priming area on the
right window glass: (b)

●

Additional priming area on the
cab door lower window glass: (c)

★

Dry the primer for at least 5 minutes
(within 8 hours).

★

Do not use wrong priming paint.

If, for example, glass primer is mis-
takenly used, wash it with unleaded
gasoline.

4) Apply priming paint (for glass surface)

onto the contact surface of window
glass (9).

Glass primer:

Sunrise MSI Primer 35

★

Do not apply the primer more than
twice; otherwise, the performance
of the primer will be reduced.

★

Priming area: Apply the priming
paint on the contact surface of glass
(9) (rubber seal (6)adhering loca-
tion) and along cab frame (8).

ZX225-1006242

ZX225-1006243

Disassembly and Assembly

SY215C

8-115

★

Leave a 5 mm margin uncoated
along the black strip adjacent to the
clear area of the glass.

★

When priming paint has been
coated, dry it for at least 5 minutes
(within 8 hours).

★

Do not use wrong primer.

If wrong glass primer is used, wash
it with unleaded gasoline.

4. Adhere rubber seal (6) (with adhesive

tape on both sides) along the inner edge of
the contact surface of the glass.

★

Do not detach the waxed paper on the
rubber seal before the window glass is
installed.

★

Do not touch the cleaned area on the
glass before rubber seal is adhered.

★

Be careful not to allow the rubber seal
on the corners to peel off.

ZXT225-1006245

ZXT225-1006246

ZX225-1006244

★

When sticking rubber seal (6) along the
window frame, do not overlap the two
ends of the seal. A 5 mm gap between
the two ends of the seal is recom-
mended.

1) Stick rubber seal (6) onto the right cab

window frame as illustrated.

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